1
2#include <linux/hw_breakpoint.h>
3#include <linux/err.h>
4#include <linux/zalloc.h>
5#include <dirent.h>
6#include <errno.h>
7#include <sys/ioctl.h>
8#include <sys/types.h>
9#include <sys/stat.h>
10#include <fcntl.h>
11#include <sys/param.h>
12#include "term.h"
13#include "build-id.h"
14#include "evlist.h"
15#include "evsel.h"
16#include <subcmd/pager.h>
17#include <subcmd/parse-options.h>
18#include "parse-events.h"
19#include <subcmd/exec-cmd.h>
20#include "string2.h"
21#include "strlist.h"
22#include "bpf-loader.h"
23#include "debug.h"
24#include <api/fs/tracing_path.h>
25#include <perf/cpumap.h>
26#include "parse-events-bison.h"
27#define YY_EXTRA_TYPE void*
28#include "parse-events-flex.h"
29#include "pmu.h"
30#include "thread_map.h"
31#include "probe-file.h"
32#include "asm/bug.h"
33#include "util/parse-branch-options.h"
34#include "metricgroup.h"
35#include "util/evsel_config.h"
36#include "util/event.h"
37#include "util/pfm.h"
38#include "util/parse-events-hybrid.h"
39#include "util/pmu-hybrid.h"
40#include "perf.h"
41
42#define MAX_NAME_LEN 100
43
44#ifdef PARSER_DEBUG
45extern int parse_events_debug;
46#endif
47int parse_events_parse(void *parse_state, void *scanner);
48static int get_config_terms(struct list_head *head_config,
49 struct list_head *head_terms __maybe_unused);
50static int parse_events__with_hybrid_pmu(struct parse_events_state *parse_state,
51 const char *str, char *pmu_name,
52 struct list_head *list);
53
54static struct perf_pmu_event_symbol *perf_pmu_events_list;
55
56
57
58
59
60
61static int perf_pmu_events_list_num;
62
63struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
64 [PERF_COUNT_HW_CPU_CYCLES] = {
65 .symbol = "cpu-cycles",
66 .alias = "cycles",
67 },
68 [PERF_COUNT_HW_INSTRUCTIONS] = {
69 .symbol = "instructions",
70 .alias = "",
71 },
72 [PERF_COUNT_HW_CACHE_REFERENCES] = {
73 .symbol = "cache-references",
74 .alias = "",
75 },
76 [PERF_COUNT_HW_CACHE_MISSES] = {
77 .symbol = "cache-misses",
78 .alias = "",
79 },
80 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = {
81 .symbol = "branch-instructions",
82 .alias = "branches",
83 },
84 [PERF_COUNT_HW_BRANCH_MISSES] = {
85 .symbol = "branch-misses",
86 .alias = "",
87 },
88 [PERF_COUNT_HW_BUS_CYCLES] = {
89 .symbol = "bus-cycles",
90 .alias = "",
91 },
92 [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = {
93 .symbol = "stalled-cycles-frontend",
94 .alias = "idle-cycles-frontend",
95 },
96 [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = {
97 .symbol = "stalled-cycles-backend",
98 .alias = "idle-cycles-backend",
99 },
100 [PERF_COUNT_HW_REF_CPU_CYCLES] = {
101 .symbol = "ref-cycles",
102 .alias = "",
103 },
104};
105
106struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
107 [PERF_COUNT_SW_CPU_CLOCK] = {
108 .symbol = "cpu-clock",
109 .alias = "",
110 },
111 [PERF_COUNT_SW_TASK_CLOCK] = {
112 .symbol = "task-clock",
113 .alias = "",
114 },
115 [PERF_COUNT_SW_PAGE_FAULTS] = {
116 .symbol = "page-faults",
117 .alias = "faults",
118 },
119 [PERF_COUNT_SW_CONTEXT_SWITCHES] = {
120 .symbol = "context-switches",
121 .alias = "cs",
122 },
123 [PERF_COUNT_SW_CPU_MIGRATIONS] = {
124 .symbol = "cpu-migrations",
125 .alias = "migrations",
126 },
127 [PERF_COUNT_SW_PAGE_FAULTS_MIN] = {
128 .symbol = "minor-faults",
129 .alias = "",
130 },
131 [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = {
132 .symbol = "major-faults",
133 .alias = "",
134 },
135 [PERF_COUNT_SW_ALIGNMENT_FAULTS] = {
136 .symbol = "alignment-faults",
137 .alias = "",
138 },
139 [PERF_COUNT_SW_EMULATION_FAULTS] = {
140 .symbol = "emulation-faults",
141 .alias = "",
142 },
143 [PERF_COUNT_SW_DUMMY] = {
144 .symbol = "dummy",
145 .alias = "",
146 },
147 [PERF_COUNT_SW_BPF_OUTPUT] = {
148 .symbol = "bpf-output",
149 .alias = "",
150 },
151 [PERF_COUNT_SW_CGROUP_SWITCHES] = {
152 .symbol = "cgroup-switches",
153 .alias = "",
154 },
155};
156
157struct event_symbol event_symbols_tool[PERF_TOOL_MAX] = {
158 [PERF_TOOL_DURATION_TIME] = {
159 .symbol = "duration_time",
160 .alias = "",
161 },
162 [PERF_TOOL_USER_TIME] = {
163 .symbol = "user_time",
164 .alias = "",
165 },
166 [PERF_TOOL_SYSTEM_TIME] = {
167 .symbol = "system_time",
168 .alias = "",
169 },
170};
171
172#define __PERF_EVENT_FIELD(config, name) \
173 ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
174
175#define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW)
176#define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG)
177#define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
178#define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
179
180#define for_each_subsystem(sys_dir, sys_dirent) \
181 while ((sys_dirent = readdir(sys_dir)) != NULL) \
182 if (sys_dirent->d_type == DT_DIR && \
183 (strcmp(sys_dirent->d_name, ".")) && \
184 (strcmp(sys_dirent->d_name, "..")))
185
186static int tp_event_has_id(const char *dir_path, struct dirent *evt_dir)
187{
188 char evt_path[MAXPATHLEN];
189 int fd;
190
191 snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, evt_dir->d_name);
192 fd = open(evt_path, O_RDONLY);
193 if (fd < 0)
194 return -EINVAL;
195 close(fd);
196
197 return 0;
198}
199
200#define for_each_event(dir_path, evt_dir, evt_dirent) \
201 while ((evt_dirent = readdir(evt_dir)) != NULL) \
202 if (evt_dirent->d_type == DT_DIR && \
203 (strcmp(evt_dirent->d_name, ".")) && \
204 (strcmp(evt_dirent->d_name, "..")) && \
205 (!tp_event_has_id(dir_path, evt_dirent)))
206
207#define MAX_EVENT_LENGTH 512
208
209struct tracepoint_path *tracepoint_id_to_path(u64 config)
210{
211 struct tracepoint_path *path = NULL;
212 DIR *sys_dir, *evt_dir;
213 struct dirent *sys_dirent, *evt_dirent;
214 char id_buf[24];
215 int fd;
216 u64 id;
217 char evt_path[MAXPATHLEN];
218 char *dir_path;
219
220 sys_dir = tracing_events__opendir();
221 if (!sys_dir)
222 return NULL;
223
224 for_each_subsystem(sys_dir, sys_dirent) {
225 dir_path = get_events_file(sys_dirent->d_name);
226 if (!dir_path)
227 continue;
228 evt_dir = opendir(dir_path);
229 if (!evt_dir)
230 goto next;
231
232 for_each_event(dir_path, evt_dir, evt_dirent) {
233
234 scnprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
235 evt_dirent->d_name);
236 fd = open(evt_path, O_RDONLY);
237 if (fd < 0)
238 continue;
239 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
240 close(fd);
241 continue;
242 }
243 close(fd);
244 id = atoll(id_buf);
245 if (id == config) {
246 put_events_file(dir_path);
247 closedir(evt_dir);
248 closedir(sys_dir);
249 path = zalloc(sizeof(*path));
250 if (!path)
251 return NULL;
252 if (asprintf(&path->system, "%.*s", MAX_EVENT_LENGTH, sys_dirent->d_name) < 0) {
253 free(path);
254 return NULL;
255 }
256 if (asprintf(&path->name, "%.*s", MAX_EVENT_LENGTH, evt_dirent->d_name) < 0) {
257 zfree(&path->system);
258 free(path);
259 return NULL;
260 }
261 return path;
262 }
263 }
264 closedir(evt_dir);
265next:
266 put_events_file(dir_path);
267 }
268
269 closedir(sys_dir);
270 return NULL;
271}
272
273struct tracepoint_path *tracepoint_name_to_path(const char *name)
274{
275 struct tracepoint_path *path = zalloc(sizeof(*path));
276 char *str = strchr(name, ':');
277
278 if (path == NULL || str == NULL) {
279 free(path);
280 return NULL;
281 }
282
283 path->system = strndup(name, str - name);
284 path->name = strdup(str+1);
285
286 if (path->system == NULL || path->name == NULL) {
287 zfree(&path->system);
288 zfree(&path->name);
289 zfree(&path);
290 }
291
292 return path;
293}
294
295const char *event_type(int type)
296{
297 switch (type) {
298 case PERF_TYPE_HARDWARE:
299 return "hardware";
300
301 case PERF_TYPE_SOFTWARE:
302 return "software";
303
304 case PERF_TYPE_TRACEPOINT:
305 return "tracepoint";
306
307 case PERF_TYPE_HW_CACHE:
308 return "hardware-cache";
309
310 default:
311 break;
312 }
313
314 return "unknown";
315}
316
317static char *get_config_str(struct list_head *head_terms, int type_term)
318{
319 struct parse_events_term *term;
320
321 if (!head_terms)
322 return NULL;
323
324 list_for_each_entry(term, head_terms, list)
325 if (term->type_term == type_term)
326 return term->val.str;
327
328 return NULL;
329}
330
331static char *get_config_metric_id(struct list_head *head_terms)
332{
333 return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_METRIC_ID);
334}
335
336static char *get_config_name(struct list_head *head_terms)
337{
338 return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_NAME);
339}
340
341static struct evsel *
342__add_event(struct list_head *list, int *idx,
343 struct perf_event_attr *attr,
344 bool init_attr,
345 const char *name, const char *metric_id, struct perf_pmu *pmu,
346 struct list_head *config_terms, bool auto_merge_stats,
347 const char *cpu_list)
348{
349 struct evsel *evsel;
350 struct perf_cpu_map *cpus = pmu ? perf_cpu_map__get(pmu->cpus) :
351 cpu_list ? perf_cpu_map__new(cpu_list) : NULL;
352
353 if (pmu && attr->type == PERF_TYPE_RAW)
354 perf_pmu__warn_invalid_config(pmu, attr->config, name);
355
356 if (init_attr)
357 event_attr_init(attr);
358
359 evsel = evsel__new_idx(attr, *idx);
360 if (!evsel) {
361 perf_cpu_map__put(cpus);
362 return NULL;
363 }
364
365 (*idx)++;
366 evsel->core.cpus = cpus;
367 evsel->core.own_cpus = perf_cpu_map__get(cpus);
368 evsel->core.requires_cpu = pmu ? pmu->is_uncore : false;
369 evsel->auto_merge_stats = auto_merge_stats;
370
371 if (name)
372 evsel->name = strdup(name);
373
374 if (metric_id)
375 evsel->metric_id = strdup(metric_id);
376
377 if (config_terms)
378 list_splice_init(config_terms, &evsel->config_terms);
379
380 if (list)
381 list_add_tail(&evsel->core.node, list);
382
383 return evsel;
384}
385
386struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
387 const char *name, const char *metric_id,
388 struct perf_pmu *pmu)
389{
390 return __add_event(NULL, &idx, attr, false, name,
391 metric_id, pmu, NULL,
392 false, NULL);
393}
394
395static int add_event(struct list_head *list, int *idx,
396 struct perf_event_attr *attr, const char *name,
397 const char *metric_id, struct list_head *config_terms)
398{
399 return __add_event(list, idx, attr, true, name, metric_id,
400 NULL, config_terms,
401 false, NULL) ? 0 : -ENOMEM;
402}
403
404static int add_event_tool(struct list_head *list, int *idx,
405 enum perf_tool_event tool_event)
406{
407 struct evsel *evsel;
408 struct perf_event_attr attr = {
409 .type = PERF_TYPE_SOFTWARE,
410 .config = PERF_COUNT_SW_DUMMY,
411 };
412
413 evsel = __add_event(list, idx, &attr, true, NULL,
414 NULL, NULL,
415 NULL, false,
416 "0");
417 if (!evsel)
418 return -ENOMEM;
419 evsel->tool_event = tool_event;
420 if (tool_event == PERF_TOOL_DURATION_TIME
421 || tool_event == PERF_TOOL_USER_TIME
422 || tool_event == PERF_TOOL_SYSTEM_TIME) {
423 free((char *)evsel->unit);
424 evsel->unit = strdup("ns");
425 }
426 return 0;
427}
428
429static int parse_aliases(char *str, const char *const names[][EVSEL__MAX_ALIASES], int size)
430{
431 int i, j;
432 int n, longest = -1;
433
434 for (i = 0; i < size; i++) {
435 for (j = 0; j < EVSEL__MAX_ALIASES && names[i][j]; j++) {
436 n = strlen(names[i][j]);
437 if (n > longest && !strncasecmp(str, names[i][j], n))
438 longest = n;
439 }
440 if (longest > 0)
441 return i;
442 }
443
444 return -1;
445}
446
447typedef int config_term_func_t(struct perf_event_attr *attr,
448 struct parse_events_term *term,
449 struct parse_events_error *err);
450static int config_term_common(struct perf_event_attr *attr,
451 struct parse_events_term *term,
452 struct parse_events_error *err);
453static int config_attr(struct perf_event_attr *attr,
454 struct list_head *head,
455 struct parse_events_error *err,
456 config_term_func_t config_term);
457
458int parse_events_add_cache(struct list_head *list, int *idx,
459 char *type, char *op_result1, char *op_result2,
460 struct parse_events_error *err,
461 struct list_head *head_config,
462 struct parse_events_state *parse_state)
463{
464 struct perf_event_attr attr;
465 LIST_HEAD(config_terms);
466 char name[MAX_NAME_LEN];
467 const char *config_name, *metric_id;
468 int cache_type = -1, cache_op = -1, cache_result = -1;
469 char *op_result[2] = { op_result1, op_result2 };
470 int i, n, ret;
471 bool hybrid;
472
473
474
475
476
477 cache_type = parse_aliases(type, evsel__hw_cache, PERF_COUNT_HW_CACHE_MAX);
478 if (cache_type == -1)
479 return -EINVAL;
480
481 config_name = get_config_name(head_config);
482 n = snprintf(name, MAX_NAME_LEN, "%s", type);
483
484 for (i = 0; (i < 2) && (op_result[i]); i++) {
485 char *str = op_result[i];
486
487 n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str);
488
489 if (cache_op == -1) {
490 cache_op = parse_aliases(str, evsel__hw_cache_op,
491 PERF_COUNT_HW_CACHE_OP_MAX);
492 if (cache_op >= 0) {
493 if (!evsel__is_cache_op_valid(cache_type, cache_op))
494 return -EINVAL;
495 continue;
496 }
497 }
498
499 if (cache_result == -1) {
500 cache_result = parse_aliases(str, evsel__hw_cache_result,
501 PERF_COUNT_HW_CACHE_RESULT_MAX);
502 if (cache_result >= 0)
503 continue;
504 }
505 }
506
507
508
509
510 if (cache_op == -1)
511 cache_op = PERF_COUNT_HW_CACHE_OP_READ;
512
513
514
515
516 if (cache_result == -1)
517 cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
518
519 memset(&attr, 0, sizeof(attr));
520 attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
521 attr.type = PERF_TYPE_HW_CACHE;
522
523 if (head_config) {
524 if (config_attr(&attr, head_config, err,
525 config_term_common))
526 return -EINVAL;
527
528 if (get_config_terms(head_config, &config_terms))
529 return -ENOMEM;
530 }
531
532 metric_id = get_config_metric_id(head_config);
533 ret = parse_events__add_cache_hybrid(list, idx, &attr,
534 config_name ? : name,
535 metric_id,
536 &config_terms,
537 &hybrid, parse_state);
538 if (hybrid)
539 goto out_free_terms;
540
541 ret = add_event(list, idx, &attr, config_name ? : name, metric_id,
542 &config_terms);
543out_free_terms:
544 free_config_terms(&config_terms);
545 return ret;
546}
547
548static void tracepoint_error(struct parse_events_error *e, int err,
549 const char *sys, const char *name)
550{
551 const char *str;
552 char help[BUFSIZ];
553
554 if (!e)
555 return;
556
557
558
559
560
561 err = abs(err);
562
563 switch (err) {
564 case EACCES:
565 str = "can't access trace events";
566 break;
567 case ENOENT:
568 str = "unknown tracepoint";
569 break;
570 default:
571 str = "failed to add tracepoint";
572 break;
573 }
574
575 tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name);
576 parse_events_error__handle(e, 0, strdup(str), strdup(help));
577}
578
579static int add_tracepoint(struct list_head *list, int *idx,
580 const char *sys_name, const char *evt_name,
581 struct parse_events_error *err,
582 struct list_head *head_config)
583{
584 struct evsel *evsel = evsel__newtp_idx(sys_name, evt_name, (*idx)++);
585
586 if (IS_ERR(evsel)) {
587 tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name);
588 return PTR_ERR(evsel);
589 }
590
591 if (head_config) {
592 LIST_HEAD(config_terms);
593
594 if (get_config_terms(head_config, &config_terms))
595 return -ENOMEM;
596 list_splice(&config_terms, &evsel->config_terms);
597 }
598
599 list_add_tail(&evsel->core.node, list);
600 return 0;
601}
602
603static int add_tracepoint_multi_event(struct list_head *list, int *idx,
604 const char *sys_name, const char *evt_name,
605 struct parse_events_error *err,
606 struct list_head *head_config)
607{
608 char *evt_path;
609 struct dirent *evt_ent;
610 DIR *evt_dir;
611 int ret = 0, found = 0;
612
613 evt_path = get_events_file(sys_name);
614 if (!evt_path) {
615 tracepoint_error(err, errno, sys_name, evt_name);
616 return -1;
617 }
618 evt_dir = opendir(evt_path);
619 if (!evt_dir) {
620 put_events_file(evt_path);
621 tracepoint_error(err, errno, sys_name, evt_name);
622 return -1;
623 }
624
625 while (!ret && (evt_ent = readdir(evt_dir))) {
626 if (!strcmp(evt_ent->d_name, ".")
627 || !strcmp(evt_ent->d_name, "..")
628 || !strcmp(evt_ent->d_name, "enable")
629 || !strcmp(evt_ent->d_name, "filter"))
630 continue;
631
632 if (!strglobmatch(evt_ent->d_name, evt_name))
633 continue;
634
635 found++;
636
637 ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name,
638 err, head_config);
639 }
640
641 if (!found) {
642 tracepoint_error(err, ENOENT, sys_name, evt_name);
643 ret = -1;
644 }
645
646 put_events_file(evt_path);
647 closedir(evt_dir);
648 return ret;
649}
650
651static int add_tracepoint_event(struct list_head *list, int *idx,
652 const char *sys_name, const char *evt_name,
653 struct parse_events_error *err,
654 struct list_head *head_config)
655{
656 return strpbrk(evt_name, "*?") ?
657 add_tracepoint_multi_event(list, idx, sys_name, evt_name,
658 err, head_config) :
659 add_tracepoint(list, idx, sys_name, evt_name,
660 err, head_config);
661}
662
663static int add_tracepoint_multi_sys(struct list_head *list, int *idx,
664 const char *sys_name, const char *evt_name,
665 struct parse_events_error *err,
666 struct list_head *head_config)
667{
668 struct dirent *events_ent;
669 DIR *events_dir;
670 int ret = 0;
671
672 events_dir = tracing_events__opendir();
673 if (!events_dir) {
674 tracepoint_error(err, errno, sys_name, evt_name);
675 return -1;
676 }
677
678 while (!ret && (events_ent = readdir(events_dir))) {
679 if (!strcmp(events_ent->d_name, ".")
680 || !strcmp(events_ent->d_name, "..")
681 || !strcmp(events_ent->d_name, "enable")
682 || !strcmp(events_ent->d_name, "header_event")
683 || !strcmp(events_ent->d_name, "header_page"))
684 continue;
685
686 if (!strglobmatch(events_ent->d_name, sys_name))
687 continue;
688
689 ret = add_tracepoint_event(list, idx, events_ent->d_name,
690 evt_name, err, head_config);
691 }
692
693 closedir(events_dir);
694 return ret;
695}
696
697#ifdef HAVE_LIBBPF_SUPPORT
698struct __add_bpf_event_param {
699 struct parse_events_state *parse_state;
700 struct list_head *list;
701 struct list_head *head_config;
702};
703
704static int add_bpf_event(const char *group, const char *event, int fd, struct bpf_object *obj,
705 void *_param)
706{
707 LIST_HEAD(new_evsels);
708 struct __add_bpf_event_param *param = _param;
709 struct parse_events_state *parse_state = param->parse_state;
710 struct list_head *list = param->list;
711 struct evsel *pos;
712 int err;
713
714
715
716
717
718
719
720 if (group[0] == '!')
721 return 0;
722
723 pr_debug("add bpf event %s:%s and attach bpf program %d\n",
724 group, event, fd);
725
726 err = parse_events_add_tracepoint(&new_evsels, &parse_state->idx, group,
727 event, parse_state->error,
728 param->head_config);
729 if (err) {
730 struct evsel *evsel, *tmp;
731
732 pr_debug("Failed to add BPF event %s:%s\n",
733 group, event);
734 list_for_each_entry_safe(evsel, tmp, &new_evsels, core.node) {
735 list_del_init(&evsel->core.node);
736 evsel__delete(evsel);
737 }
738 return err;
739 }
740 pr_debug("adding %s:%s\n", group, event);
741
742 list_for_each_entry(pos, &new_evsels, core.node) {
743 pr_debug("adding %s:%s to %p\n",
744 group, event, pos);
745 pos->bpf_fd = fd;
746 pos->bpf_obj = obj;
747 }
748 list_splice(&new_evsels, list);
749 return 0;
750}
751
752int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
753 struct list_head *list,
754 struct bpf_object *obj,
755 struct list_head *head_config)
756{
757 int err;
758 char errbuf[BUFSIZ];
759 struct __add_bpf_event_param param = {parse_state, list, head_config};
760 static bool registered_unprobe_atexit = false;
761
762 if (IS_ERR(obj) || !obj) {
763 snprintf(errbuf, sizeof(errbuf),
764 "Internal error: load bpf obj with NULL");
765 err = -EINVAL;
766 goto errout;
767 }
768
769
770
771
772
773
774 if (!registered_unprobe_atexit) {
775 atexit(bpf__clear);
776 registered_unprobe_atexit = true;
777 }
778
779 err = bpf__probe(obj);
780 if (err) {
781 bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf));
782 goto errout;
783 }
784
785 err = bpf__load(obj);
786 if (err) {
787 bpf__strerror_load(obj, err, errbuf, sizeof(errbuf));
788 goto errout;
789 }
790
791 err = bpf__foreach_event(obj, add_bpf_event, ¶m);
792 if (err) {
793 snprintf(errbuf, sizeof(errbuf),
794 "Attach events in BPF object failed");
795 goto errout;
796 }
797
798 return 0;
799errout:
800 parse_events_error__handle(parse_state->error, 0,
801 strdup(errbuf), strdup("(add -v to see detail)"));
802 return err;
803}
804
805static int
806parse_events_config_bpf(struct parse_events_state *parse_state,
807 struct bpf_object *obj,
808 struct list_head *head_config)
809{
810 struct parse_events_term *term;
811 int error_pos;
812
813 if (!head_config || list_empty(head_config))
814 return 0;
815
816 list_for_each_entry(term, head_config, list) {
817 int err;
818
819 if (term->type_term != PARSE_EVENTS__TERM_TYPE_USER) {
820 parse_events_error__handle(parse_state->error, term->err_term,
821 strdup("Invalid config term for BPF object"),
822 NULL);
823 return -EINVAL;
824 }
825
826 err = bpf__config_obj(obj, term, parse_state->evlist, &error_pos);
827 if (err) {
828 char errbuf[BUFSIZ];
829 int idx;
830
831 bpf__strerror_config_obj(obj, term, parse_state->evlist,
832 &error_pos, err, errbuf,
833 sizeof(errbuf));
834
835 if (err == -BPF_LOADER_ERRNO__OBJCONF_MAP_VALUE)
836 idx = term->err_val;
837 else
838 idx = term->err_term + error_pos;
839
840 parse_events_error__handle(parse_state->error, idx,
841 strdup(errbuf),
842 strdup(
843"Hint:\tValid config terms:\n"
844" \tmap:[<arraymap>].value<indices>=[value]\n"
845" \tmap:[<eventmap>].event<indices>=[event]\n"
846"\n"
847" \twhere <indices> is something like [0,3...5] or [all]\n"
848" \t(add -v to see detail)"));
849 return err;
850 }
851 }
852 return 0;
853}
854
855
856
857
858
859
860
861
862
863
864
865static void
866split_bpf_config_terms(struct list_head *evt_head_config,
867 struct list_head *obj_head_config)
868{
869 struct parse_events_term *term, *temp;
870
871
872
873
874
875
876
877
878
879 list_for_each_entry_safe(term, temp, evt_head_config, list)
880 if (!parse_events__is_hardcoded_term(term))
881 list_move_tail(&term->list, obj_head_config);
882}
883
884int parse_events_load_bpf(struct parse_events_state *parse_state,
885 struct list_head *list,
886 char *bpf_file_name,
887 bool source,
888 struct list_head *head_config)
889{
890 int err;
891 struct bpf_object *obj;
892 LIST_HEAD(obj_head_config);
893
894 if (head_config)
895 split_bpf_config_terms(head_config, &obj_head_config);
896
897 obj = bpf__prepare_load(bpf_file_name, source);
898 if (IS_ERR(obj)) {
899 char errbuf[BUFSIZ];
900
901 err = PTR_ERR(obj);
902
903 if (err == -ENOTSUP)
904 snprintf(errbuf, sizeof(errbuf),
905 "BPF support is not compiled");
906 else
907 bpf__strerror_prepare_load(bpf_file_name,
908 source,
909 -err, errbuf,
910 sizeof(errbuf));
911
912 parse_events_error__handle(parse_state->error, 0,
913 strdup(errbuf), strdup("(add -v to see detail)"));
914 return err;
915 }
916
917 err = parse_events_load_bpf_obj(parse_state, list, obj, head_config);
918 if (err)
919 return err;
920 err = parse_events_config_bpf(parse_state, obj, &obj_head_config);
921
922
923
924
925
926 if (head_config)
927 list_splice_tail(&obj_head_config, head_config);
928 return err;
929}
930#else
931int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
932 struct list_head *list __maybe_unused,
933 struct bpf_object *obj __maybe_unused,
934 struct list_head *head_config __maybe_unused)
935{
936 parse_events_error__handle(parse_state->error, 0,
937 strdup("BPF support is not compiled"),
938 strdup("Make sure libbpf-devel is available at build time."));
939 return -ENOTSUP;
940}
941
942int parse_events_load_bpf(struct parse_events_state *parse_state,
943 struct list_head *list __maybe_unused,
944 char *bpf_file_name __maybe_unused,
945 bool source __maybe_unused,
946 struct list_head *head_config __maybe_unused)
947{
948 parse_events_error__handle(parse_state->error, 0,
949 strdup("BPF support is not compiled"),
950 strdup("Make sure libbpf-devel is available at build time."));
951 return -ENOTSUP;
952}
953#endif
954
955static int
956parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
957{
958 int i;
959
960 for (i = 0; i < 3; i++) {
961 if (!type || !type[i])
962 break;
963
964#define CHECK_SET_TYPE(bit) \
965do { \
966 if (attr->bp_type & bit) \
967 return -EINVAL; \
968 else \
969 attr->bp_type |= bit; \
970} while (0)
971
972 switch (type[i]) {
973 case 'r':
974 CHECK_SET_TYPE(HW_BREAKPOINT_R);
975 break;
976 case 'w':
977 CHECK_SET_TYPE(HW_BREAKPOINT_W);
978 break;
979 case 'x':
980 CHECK_SET_TYPE(HW_BREAKPOINT_X);
981 break;
982 default:
983 return -EINVAL;
984 }
985 }
986
987#undef CHECK_SET_TYPE
988
989 if (!attr->bp_type)
990 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
991
992 return 0;
993}
994
995int parse_events_add_breakpoint(struct list_head *list, int *idx,
996 u64 addr, char *type, u64 len)
997{
998 struct perf_event_attr attr;
999
1000 memset(&attr, 0, sizeof(attr));
1001 attr.bp_addr = addr;
1002
1003 if (parse_breakpoint_type(type, &attr))
1004 return -EINVAL;
1005
1006
1007 if (!len) {
1008 if (attr.bp_type == HW_BREAKPOINT_X)
1009 len = sizeof(long);
1010 else
1011 len = HW_BREAKPOINT_LEN_4;
1012 }
1013
1014 attr.bp_len = len;
1015
1016 attr.type = PERF_TYPE_BREAKPOINT;
1017 attr.sample_period = 1;
1018
1019 return add_event(list, idx, &attr, NULL, NULL,
1020 NULL);
1021}
1022
1023static int check_type_val(struct parse_events_term *term,
1024 struct parse_events_error *err,
1025 int type)
1026{
1027 if (type == term->type_val)
1028 return 0;
1029
1030 if (err) {
1031 parse_events_error__handle(err, term->err_val,
1032 type == PARSE_EVENTS__TERM_TYPE_NUM
1033 ? strdup("expected numeric value")
1034 : strdup("expected string value"),
1035 NULL);
1036 }
1037 return -EINVAL;
1038}
1039
1040
1041
1042
1043static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = {
1044 [PARSE_EVENTS__TERM_TYPE_USER] = "<sysfs term>",
1045 [PARSE_EVENTS__TERM_TYPE_CONFIG] = "config",
1046 [PARSE_EVENTS__TERM_TYPE_CONFIG1] = "config1",
1047 [PARSE_EVENTS__TERM_TYPE_CONFIG2] = "config2",
1048 [PARSE_EVENTS__TERM_TYPE_NAME] = "name",
1049 [PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD] = "period",
1050 [PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ] = "freq",
1051 [PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE] = "branch_type",
1052 [PARSE_EVENTS__TERM_TYPE_TIME] = "time",
1053 [PARSE_EVENTS__TERM_TYPE_CALLGRAPH] = "call-graph",
1054 [PARSE_EVENTS__TERM_TYPE_STACKSIZE] = "stack-size",
1055 [PARSE_EVENTS__TERM_TYPE_NOINHERIT] = "no-inherit",
1056 [PARSE_EVENTS__TERM_TYPE_INHERIT] = "inherit",
1057 [PARSE_EVENTS__TERM_TYPE_MAX_STACK] = "max-stack",
1058 [PARSE_EVENTS__TERM_TYPE_MAX_EVENTS] = "nr",
1059 [PARSE_EVENTS__TERM_TYPE_OVERWRITE] = "overwrite",
1060 [PARSE_EVENTS__TERM_TYPE_NOOVERWRITE] = "no-overwrite",
1061 [PARSE_EVENTS__TERM_TYPE_DRV_CFG] = "driver-config",
1062 [PARSE_EVENTS__TERM_TYPE_PERCORE] = "percore",
1063 [PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT] = "aux-output",
1064 [PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE] = "aux-sample-size",
1065 [PARSE_EVENTS__TERM_TYPE_METRIC_ID] = "metric-id",
1066};
1067
1068static bool config_term_shrinked;
1069
1070static bool
1071config_term_avail(int term_type, struct parse_events_error *err)
1072{
1073 char *err_str;
1074
1075 if (term_type < 0 || term_type >= __PARSE_EVENTS__TERM_TYPE_NR) {
1076 parse_events_error__handle(err, -1,
1077 strdup("Invalid term_type"), NULL);
1078 return false;
1079 }
1080 if (!config_term_shrinked)
1081 return true;
1082
1083 switch (term_type) {
1084 case PARSE_EVENTS__TERM_TYPE_CONFIG:
1085 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
1086 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
1087 case PARSE_EVENTS__TERM_TYPE_NAME:
1088 case PARSE_EVENTS__TERM_TYPE_METRIC_ID:
1089 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
1090 case PARSE_EVENTS__TERM_TYPE_PERCORE:
1091 return true;
1092 default:
1093 if (!err)
1094 return false;
1095
1096
1097 if (asprintf(&err_str, "'%s' is not usable in 'perf stat'",
1098 config_term_names[term_type]) >= 0)
1099 parse_events_error__handle(err, -1, err_str, NULL);
1100 return false;
1101 }
1102}
1103
1104void parse_events__shrink_config_terms(void)
1105{
1106 config_term_shrinked = true;
1107}
1108
1109static int config_term_common(struct perf_event_attr *attr,
1110 struct parse_events_term *term,
1111 struct parse_events_error *err)
1112{
1113#define CHECK_TYPE_VAL(type) \
1114do { \
1115 if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \
1116 return -EINVAL; \
1117} while (0)
1118
1119 switch (term->type_term) {
1120 case PARSE_EVENTS__TERM_TYPE_CONFIG:
1121 CHECK_TYPE_VAL(NUM);
1122 attr->config = term->val.num;
1123 break;
1124 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
1125 CHECK_TYPE_VAL(NUM);
1126 attr->config1 = term->val.num;
1127 break;
1128 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
1129 CHECK_TYPE_VAL(NUM);
1130 attr->config2 = term->val.num;
1131 break;
1132 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
1133 CHECK_TYPE_VAL(NUM);
1134 break;
1135 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
1136 CHECK_TYPE_VAL(NUM);
1137 break;
1138 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
1139 CHECK_TYPE_VAL(STR);
1140 if (strcmp(term->val.str, "no") &&
1141 parse_branch_str(term->val.str,
1142 &attr->branch_sample_type)) {
1143 parse_events_error__handle(err, term->err_val,
1144 strdup("invalid branch sample type"),
1145 NULL);
1146 return -EINVAL;
1147 }
1148 break;
1149 case PARSE_EVENTS__TERM_TYPE_TIME:
1150 CHECK_TYPE_VAL(NUM);
1151 if (term->val.num > 1) {
1152 parse_events_error__handle(err, term->err_val,
1153 strdup("expected 0 or 1"),
1154 NULL);
1155 return -EINVAL;
1156 }
1157 break;
1158 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
1159 CHECK_TYPE_VAL(STR);
1160 break;
1161 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
1162 CHECK_TYPE_VAL(NUM);
1163 break;
1164 case PARSE_EVENTS__TERM_TYPE_INHERIT:
1165 CHECK_TYPE_VAL(NUM);
1166 break;
1167 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
1168 CHECK_TYPE_VAL(NUM);
1169 break;
1170 case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
1171 CHECK_TYPE_VAL(NUM);
1172 break;
1173 case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
1174 CHECK_TYPE_VAL(NUM);
1175 break;
1176 case PARSE_EVENTS__TERM_TYPE_NAME:
1177 CHECK_TYPE_VAL(STR);
1178 break;
1179 case PARSE_EVENTS__TERM_TYPE_METRIC_ID:
1180 CHECK_TYPE_VAL(STR);
1181 break;
1182 case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
1183 CHECK_TYPE_VAL(NUM);
1184 break;
1185 case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
1186 CHECK_TYPE_VAL(NUM);
1187 break;
1188 case PARSE_EVENTS__TERM_TYPE_PERCORE:
1189 CHECK_TYPE_VAL(NUM);
1190 if ((unsigned int)term->val.num > 1) {
1191 parse_events_error__handle(err, term->err_val,
1192 strdup("expected 0 or 1"),
1193 NULL);
1194 return -EINVAL;
1195 }
1196 break;
1197 case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
1198 CHECK_TYPE_VAL(NUM);
1199 break;
1200 case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
1201 CHECK_TYPE_VAL(NUM);
1202 if (term->val.num > UINT_MAX) {
1203 parse_events_error__handle(err, term->err_val,
1204 strdup("too big"),
1205 NULL);
1206 return -EINVAL;
1207 }
1208 break;
1209 default:
1210 parse_events_error__handle(err, term->err_term,
1211 strdup("unknown term"),
1212 parse_events_formats_error_string(NULL));
1213 return -EINVAL;
1214 }
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225 if (!config_term_avail(term->type_term, err))
1226 return -EINVAL;
1227 return 0;
1228#undef CHECK_TYPE_VAL
1229}
1230
1231static int config_term_pmu(struct perf_event_attr *attr,
1232 struct parse_events_term *term,
1233 struct parse_events_error *err)
1234{
1235 if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER ||
1236 term->type_term == PARSE_EVENTS__TERM_TYPE_DRV_CFG)
1237
1238
1239
1240
1241 return 0;
1242 else
1243 return config_term_common(attr, term, err);
1244}
1245
1246static int config_term_tracepoint(struct perf_event_attr *attr,
1247 struct parse_events_term *term,
1248 struct parse_events_error *err)
1249{
1250 switch (term->type_term) {
1251 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
1252 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
1253 case PARSE_EVENTS__TERM_TYPE_INHERIT:
1254 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
1255 case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
1256 case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
1257 case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
1258 case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
1259 case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
1260 case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
1261 return config_term_common(attr, term, err);
1262 default:
1263 if (err) {
1264 parse_events_error__handle(err, term->err_term,
1265 strdup("unknown term"),
1266 strdup("valid terms: call-graph,stack-size\n"));
1267 }
1268 return -EINVAL;
1269 }
1270
1271 return 0;
1272}
1273
1274static int config_attr(struct perf_event_attr *attr,
1275 struct list_head *head,
1276 struct parse_events_error *err,
1277 config_term_func_t config_term)
1278{
1279 struct parse_events_term *term;
1280
1281 list_for_each_entry(term, head, list)
1282 if (config_term(attr, term, err))
1283 return -EINVAL;
1284
1285 return 0;
1286}
1287
1288static int get_config_terms(struct list_head *head_config,
1289 struct list_head *head_terms __maybe_unused)
1290{
1291#define ADD_CONFIG_TERM(__type, __weak) \
1292 struct evsel_config_term *__t; \
1293 \
1294 __t = zalloc(sizeof(*__t)); \
1295 if (!__t) \
1296 return -ENOMEM; \
1297 \
1298 INIT_LIST_HEAD(&__t->list); \
1299 __t->type = EVSEL__CONFIG_TERM_ ## __type; \
1300 __t->weak = __weak; \
1301 list_add_tail(&__t->list, head_terms)
1302
1303#define ADD_CONFIG_TERM_VAL(__type, __name, __val, __weak) \
1304do { \
1305 ADD_CONFIG_TERM(__type, __weak); \
1306 __t->val.__name = __val; \
1307} while (0)
1308
1309#define ADD_CONFIG_TERM_STR(__type, __val, __weak) \
1310do { \
1311 ADD_CONFIG_TERM(__type, __weak); \
1312 __t->val.str = strdup(__val); \
1313 if (!__t->val.str) { \
1314 zfree(&__t); \
1315 return -ENOMEM; \
1316 } \
1317 __t->free_str = true; \
1318} while (0)
1319
1320 struct parse_events_term *term;
1321
1322 list_for_each_entry(term, head_config, list) {
1323 switch (term->type_term) {
1324 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
1325 ADD_CONFIG_TERM_VAL(PERIOD, period, term->val.num, term->weak);
1326 break;
1327 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
1328 ADD_CONFIG_TERM_VAL(FREQ, freq, term->val.num, term->weak);
1329 break;
1330 case PARSE_EVENTS__TERM_TYPE_TIME:
1331 ADD_CONFIG_TERM_VAL(TIME, time, term->val.num, term->weak);
1332 break;
1333 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
1334 ADD_CONFIG_TERM_STR(CALLGRAPH, term->val.str, term->weak);
1335 break;
1336 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
1337 ADD_CONFIG_TERM_STR(BRANCH, term->val.str, term->weak);
1338 break;
1339 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
1340 ADD_CONFIG_TERM_VAL(STACK_USER, stack_user,
1341 term->val.num, term->weak);
1342 break;
1343 case PARSE_EVENTS__TERM_TYPE_INHERIT:
1344 ADD_CONFIG_TERM_VAL(INHERIT, inherit,
1345 term->val.num ? 1 : 0, term->weak);
1346 break;
1347 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
1348 ADD_CONFIG_TERM_VAL(INHERIT, inherit,
1349 term->val.num ? 0 : 1, term->weak);
1350 break;
1351 case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
1352 ADD_CONFIG_TERM_VAL(MAX_STACK, max_stack,
1353 term->val.num, term->weak);
1354 break;
1355 case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
1356 ADD_CONFIG_TERM_VAL(MAX_EVENTS, max_events,
1357 term->val.num, term->weak);
1358 break;
1359 case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
1360 ADD_CONFIG_TERM_VAL(OVERWRITE, overwrite,
1361 term->val.num ? 1 : 0, term->weak);
1362 break;
1363 case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
1364 ADD_CONFIG_TERM_VAL(OVERWRITE, overwrite,
1365 term->val.num ? 0 : 1, term->weak);
1366 break;
1367 case PARSE_EVENTS__TERM_TYPE_DRV_CFG:
1368 ADD_CONFIG_TERM_STR(DRV_CFG, term->val.str, term->weak);
1369 break;
1370 case PARSE_EVENTS__TERM_TYPE_PERCORE:
1371 ADD_CONFIG_TERM_VAL(PERCORE, percore,
1372 term->val.num ? true : false, term->weak);
1373 break;
1374 case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
1375 ADD_CONFIG_TERM_VAL(AUX_OUTPUT, aux_output,
1376 term->val.num ? 1 : 0, term->weak);
1377 break;
1378 case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
1379 ADD_CONFIG_TERM_VAL(AUX_SAMPLE_SIZE, aux_sample_size,
1380 term->val.num, term->weak);
1381 break;
1382 default:
1383 break;
1384 }
1385 }
1386 return 0;
1387}
1388
1389
1390
1391
1392
1393static int get_config_chgs(struct perf_pmu *pmu, struct list_head *head_config,
1394 struct list_head *head_terms)
1395{
1396 struct parse_events_term *term;
1397 u64 bits = 0;
1398 int type;
1399
1400 list_for_each_entry(term, head_config, list) {
1401 switch (term->type_term) {
1402 case PARSE_EVENTS__TERM_TYPE_USER:
1403 type = perf_pmu__format_type(&pmu->format, term->config);
1404 if (type != PERF_PMU_FORMAT_VALUE_CONFIG)
1405 continue;
1406 bits |= perf_pmu__format_bits(&pmu->format, term->config);
1407 break;
1408 case PARSE_EVENTS__TERM_TYPE_CONFIG:
1409 bits = ~(u64)0;
1410 break;
1411 default:
1412 break;
1413 }
1414 }
1415
1416 if (bits)
1417 ADD_CONFIG_TERM_VAL(CFG_CHG, cfg_chg, bits, false);
1418
1419#undef ADD_CONFIG_TERM
1420 return 0;
1421}
1422
1423int parse_events_add_tracepoint(struct list_head *list, int *idx,
1424 const char *sys, const char *event,
1425 struct parse_events_error *err,
1426 struct list_head *head_config)
1427{
1428 if (head_config) {
1429 struct perf_event_attr attr;
1430
1431 if (config_attr(&attr, head_config, err,
1432 config_term_tracepoint))
1433 return -EINVAL;
1434 }
1435
1436 if (strpbrk(sys, "*?"))
1437 return add_tracepoint_multi_sys(list, idx, sys, event,
1438 err, head_config);
1439 else
1440 return add_tracepoint_event(list, idx, sys, event,
1441 err, head_config);
1442}
1443
1444int parse_events_add_numeric(struct parse_events_state *parse_state,
1445 struct list_head *list,
1446 u32 type, u64 config,
1447 struct list_head *head_config)
1448{
1449 struct perf_event_attr attr;
1450 LIST_HEAD(config_terms);
1451 const char *name, *metric_id;
1452 bool hybrid;
1453 int ret;
1454
1455 memset(&attr, 0, sizeof(attr));
1456 attr.type = type;
1457 attr.config = config;
1458
1459 if (head_config) {
1460 if (config_attr(&attr, head_config, parse_state->error,
1461 config_term_common))
1462 return -EINVAL;
1463
1464 if (get_config_terms(head_config, &config_terms))
1465 return -ENOMEM;
1466 }
1467
1468 name = get_config_name(head_config);
1469 metric_id = get_config_metric_id(head_config);
1470 ret = parse_events__add_numeric_hybrid(parse_state, list, &attr,
1471 name, metric_id,
1472 &config_terms, &hybrid);
1473 if (hybrid)
1474 goto out_free_terms;
1475
1476 ret = add_event(list, &parse_state->idx, &attr, name, metric_id,
1477 &config_terms);
1478out_free_terms:
1479 free_config_terms(&config_terms);
1480 return ret;
1481}
1482
1483int parse_events_add_tool(struct parse_events_state *parse_state,
1484 struct list_head *list,
1485 int tool_event)
1486{
1487 return add_event_tool(list, &parse_state->idx, tool_event);
1488}
1489
1490static bool config_term_percore(struct list_head *config_terms)
1491{
1492 struct evsel_config_term *term;
1493
1494 list_for_each_entry(term, config_terms, list) {
1495 if (term->type == EVSEL__CONFIG_TERM_PERCORE)
1496 return term->val.percore;
1497 }
1498
1499 return false;
1500}
1501
1502static int parse_events__inside_hybrid_pmu(struct parse_events_state *parse_state,
1503 struct list_head *list, char *name,
1504 struct list_head *head_config)
1505{
1506 struct parse_events_term *term;
1507 int ret = -1;
1508
1509 if (parse_state->fake_pmu || !head_config || list_empty(head_config) ||
1510 !perf_pmu__is_hybrid(name)) {
1511 return -1;
1512 }
1513
1514
1515
1516
1517 if (head_config->next && head_config->next->next != head_config)
1518 return -1;
1519
1520 term = list_first_entry(head_config, struct parse_events_term, list);
1521 if (term && term->config && strcmp(term->config, "event")) {
1522 ret = parse_events__with_hybrid_pmu(parse_state, term->config,
1523 name, list);
1524 }
1525
1526 return ret;
1527}
1528
1529int parse_events_add_pmu(struct parse_events_state *parse_state,
1530 struct list_head *list, char *name,
1531 struct list_head *head_config,
1532 bool auto_merge_stats,
1533 bool use_alias)
1534{
1535 struct perf_event_attr attr;
1536 struct perf_pmu_info info;
1537 struct perf_pmu *pmu;
1538 struct evsel *evsel;
1539 struct parse_events_error *err = parse_state->error;
1540 bool use_uncore_alias;
1541 LIST_HEAD(config_terms);
1542
1543 pmu = parse_state->fake_pmu ?: perf_pmu__find(name);
1544
1545 if (verbose > 1 && !(pmu && pmu->selectable)) {
1546 fprintf(stderr, "Attempting to add event pmu '%s' with '",
1547 name);
1548 if (head_config) {
1549 struct parse_events_term *term;
1550
1551 list_for_each_entry(term, head_config, list) {
1552 fprintf(stderr, "%s,", term->config);
1553 }
1554 }
1555 fprintf(stderr, "' that may result in non-fatal errors\n");
1556 }
1557
1558 if (!pmu) {
1559 char *err_str;
1560
1561 if (asprintf(&err_str,
1562 "Cannot find PMU `%s'. Missing kernel support?",
1563 name) >= 0)
1564 parse_events_error__handle(err, 0, err_str, NULL);
1565 return -EINVAL;
1566 }
1567
1568 if (pmu->default_config) {
1569 memcpy(&attr, pmu->default_config,
1570 sizeof(struct perf_event_attr));
1571 } else {
1572 memset(&attr, 0, sizeof(attr));
1573 }
1574
1575 use_uncore_alias = (pmu->is_uncore && use_alias);
1576
1577 if (!head_config) {
1578 attr.type = pmu->type;
1579 evsel = __add_event(list, &parse_state->idx, &attr,
1580 true, NULL,
1581 NULL, pmu,
1582 NULL, auto_merge_stats,
1583 NULL);
1584 if (evsel) {
1585 evsel->pmu_name = name ? strdup(name) : NULL;
1586 evsel->use_uncore_alias = use_uncore_alias;
1587 return 0;
1588 } else {
1589 return -ENOMEM;
1590 }
1591 }
1592
1593 if (!parse_state->fake_pmu && perf_pmu__check_alias(pmu, head_config, &info))
1594 return -EINVAL;
1595
1596 if (verbose > 1) {
1597 fprintf(stderr, "After aliases, add event pmu '%s' with '",
1598 name);
1599 if (head_config) {
1600 struct parse_events_term *term;
1601
1602 list_for_each_entry(term, head_config, list) {
1603 fprintf(stderr, "%s,", term->config);
1604 }
1605 }
1606 fprintf(stderr, "' that may result in non-fatal errors\n");
1607 }
1608
1609
1610
1611
1612
1613 if (config_attr(&attr, head_config, parse_state->error, config_term_pmu))
1614 return -EINVAL;
1615
1616 if (get_config_terms(head_config, &config_terms))
1617 return -ENOMEM;
1618
1619
1620
1621
1622
1623 if (pmu->default_config && get_config_chgs(pmu, head_config, &config_terms))
1624 return -ENOMEM;
1625
1626 if (!parse_events__inside_hybrid_pmu(parse_state, list, name,
1627 head_config)) {
1628 return 0;
1629 }
1630
1631 if (!parse_state->fake_pmu && perf_pmu__config(pmu, &attr, head_config, parse_state->error)) {
1632 free_config_terms(&config_terms);
1633 return -EINVAL;
1634 }
1635
1636 evsel = __add_event(list, &parse_state->idx, &attr, true,
1637 get_config_name(head_config),
1638 get_config_metric_id(head_config), pmu,
1639 &config_terms, auto_merge_stats, NULL);
1640 if (!evsel)
1641 return -ENOMEM;
1642
1643 if (evsel->name)
1644 evsel->use_config_name = true;
1645
1646 evsel->pmu_name = name ? strdup(name) : NULL;
1647 evsel->use_uncore_alias = use_uncore_alias;
1648 evsel->percore = config_term_percore(&evsel->config_terms);
1649
1650 if (parse_state->fake_pmu)
1651 return 0;
1652
1653 free((char *)evsel->unit);
1654 evsel->unit = strdup(info.unit);
1655 evsel->scale = info.scale;
1656 evsel->per_pkg = info.per_pkg;
1657 evsel->snapshot = info.snapshot;
1658 evsel->metric_expr = info.metric_expr;
1659 evsel->metric_name = info.metric_name;
1660 return 0;
1661}
1662
1663int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
1664 char *str, struct list_head *head,
1665 struct list_head **listp)
1666{
1667 struct parse_events_term *term;
1668 struct list_head *list = NULL;
1669 struct list_head *orig_head = NULL;
1670 struct perf_pmu *pmu = NULL;
1671 int ok = 0;
1672 char *config;
1673
1674 *listp = NULL;
1675
1676 if (!head) {
1677 head = malloc(sizeof(struct list_head));
1678 if (!head)
1679 goto out_err;
1680
1681 INIT_LIST_HEAD(head);
1682 }
1683 config = strdup(str);
1684 if (!config)
1685 goto out_err;
1686
1687 if (parse_events_term__num(&term,
1688 PARSE_EVENTS__TERM_TYPE_USER,
1689 config, 1, false, &config,
1690 NULL) < 0) {
1691 free(config);
1692 goto out_err;
1693 }
1694 list_add_tail(&term->list, head);
1695
1696
1697 list = malloc(sizeof(struct list_head));
1698 if (!list)
1699 goto out_err;
1700
1701 INIT_LIST_HEAD(list);
1702
1703 while ((pmu = perf_pmu__scan(pmu)) != NULL) {
1704 struct perf_pmu_alias *alias;
1705
1706 list_for_each_entry(alias, &pmu->aliases, list) {
1707 if (!strcasecmp(alias->name, str)) {
1708 parse_events_copy_term_list(head, &orig_head);
1709 if (!parse_events_add_pmu(parse_state, list,
1710 pmu->name, orig_head,
1711 true, true)) {
1712 pr_debug("%s -> %s/%s/\n", str,
1713 pmu->name, alias->str);
1714 ok++;
1715 }
1716 parse_events_terms__delete(orig_head);
1717 }
1718 }
1719 }
1720
1721 if (parse_state->fake_pmu) {
1722 if (!parse_events_add_pmu(parse_state, list, str, head,
1723 true, true)) {
1724 pr_debug("%s -> %s/%s/\n", str, "fake_pmu", str);
1725 ok++;
1726 }
1727 }
1728
1729out_err:
1730 if (ok)
1731 *listp = list;
1732 else
1733 free(list);
1734
1735 parse_events_terms__delete(head);
1736 return ok ? 0 : -1;
1737}
1738
1739int parse_events__modifier_group(struct list_head *list,
1740 char *event_mod)
1741{
1742 return parse_events__modifier_event(list, event_mod, true);
1743}
1744
1745
1746
1747
1748
1749static bool is_same_uncore_block(const char *pmu_name_a, const char *pmu_name_b)
1750{
1751 char *end_a, *end_b;
1752
1753 end_a = strrchr(pmu_name_a, '_');
1754 end_b = strrchr(pmu_name_b, '_');
1755
1756 if (!end_a || !end_b)
1757 return false;
1758
1759 if ((end_a - pmu_name_a) != (end_b - pmu_name_b))
1760 return false;
1761
1762 return (strncmp(pmu_name_a, pmu_name_b, end_a - pmu_name_a) == 0);
1763}
1764
1765static int
1766parse_events__set_leader_for_uncore_aliase(char *name, struct list_head *list,
1767 struct parse_events_state *parse_state)
1768{
1769 struct evsel *evsel, *leader;
1770 uintptr_t *leaders;
1771 bool is_leader = true;
1772 int i, nr_pmu = 0, total_members, ret = 0;
1773
1774 leader = list_first_entry(list, struct evsel, core.node);
1775 evsel = list_last_entry(list, struct evsel, core.node);
1776 total_members = evsel->core.idx - leader->core.idx + 1;
1777
1778 leaders = calloc(total_members, sizeof(uintptr_t));
1779 if (WARN_ON(!leaders))
1780 return 0;
1781
1782
1783
1784
1785
1786
1787 __evlist__for_each_entry(list, evsel) {
1788
1789
1790 if (!evsel->use_uncore_alias)
1791 goto out;
1792
1793
1794 if (!is_same_uncore_block(leader->pmu_name, evsel->pmu_name))
1795 goto out;
1796
1797 if (!is_leader)
1798 continue;
1799
1800
1801
1802
1803
1804 if ((leader != evsel) &&
1805 !strcmp(leader->pmu_name, evsel->pmu_name)) {
1806 is_leader = false;
1807 continue;
1808 }
1809
1810
1811 leaders[nr_pmu++] = (uintptr_t) evsel;
1812 }
1813
1814
1815 if (nr_pmu == total_members) {
1816 parse_state->nr_groups--;
1817 goto handled;
1818 }
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832 i = 0;
1833 __evlist__for_each_entry(list, evsel) {
1834 if (i >= nr_pmu)
1835 i = 0;
1836 evsel__set_leader(evsel, (struct evsel *) leaders[i++]);
1837 }
1838
1839
1840 for (i = 0; i < nr_pmu; i++) {
1841 evsel = (struct evsel *) leaders[i];
1842 evsel->core.nr_members = total_members / nr_pmu;
1843 evsel->group_name = name ? strdup(name) : NULL;
1844 }
1845
1846
1847 parse_state->nr_groups += nr_pmu - 1;
1848
1849handled:
1850 ret = 1;
1851out:
1852 free(leaders);
1853 return ret;
1854}
1855
1856__weak struct evsel *arch_evlist__leader(struct list_head *list)
1857{
1858 return list_first_entry(list, struct evsel, core.node);
1859}
1860
1861void parse_events__set_leader(char *name, struct list_head *list,
1862 struct parse_events_state *parse_state)
1863{
1864 struct evsel *leader;
1865
1866 if (list_empty(list)) {
1867 WARN_ONCE(true, "WARNING: failed to set leader: empty list");
1868 return;
1869 }
1870
1871 if (parse_events__set_leader_for_uncore_aliase(name, list, parse_state))
1872 return;
1873
1874 leader = arch_evlist__leader(list);
1875 __perf_evlist__set_leader(list, &leader->core);
1876 leader->group_name = name ? strdup(name) : NULL;
1877 list_move(&leader->core.node, list);
1878}
1879
1880
1881void parse_events_update_lists(struct list_head *list_event,
1882 struct list_head *list_all)
1883{
1884
1885
1886
1887
1888
1889 list_splice_tail(list_event, list_all);
1890 free(list_event);
1891}
1892
1893struct event_modifier {
1894 int eu;
1895 int ek;
1896 int eh;
1897 int eH;
1898 int eG;
1899 int eI;
1900 int precise;
1901 int precise_max;
1902 int exclude_GH;
1903 int sample_read;
1904 int pinned;
1905 int weak;
1906 int exclusive;
1907 int bpf_counter;
1908};
1909
1910static int get_event_modifier(struct event_modifier *mod, char *str,
1911 struct evsel *evsel)
1912{
1913 int eu = evsel ? evsel->core.attr.exclude_user : 0;
1914 int ek = evsel ? evsel->core.attr.exclude_kernel : 0;
1915 int eh = evsel ? evsel->core.attr.exclude_hv : 0;
1916 int eH = evsel ? evsel->core.attr.exclude_host : 0;
1917 int eG = evsel ? evsel->core.attr.exclude_guest : 0;
1918 int eI = evsel ? evsel->core.attr.exclude_idle : 0;
1919 int precise = evsel ? evsel->core.attr.precise_ip : 0;
1920 int precise_max = 0;
1921 int sample_read = 0;
1922 int pinned = evsel ? evsel->core.attr.pinned : 0;
1923 int exclusive = evsel ? evsel->core.attr.exclusive : 0;
1924
1925 int exclude = eu | ek | eh;
1926 int exclude_GH = evsel ? evsel->exclude_GH : 0;
1927 int weak = 0;
1928 int bpf_counter = 0;
1929
1930 memset(mod, 0, sizeof(*mod));
1931
1932 while (*str) {
1933 if (*str == 'u') {
1934 if (!exclude)
1935 exclude = eu = ek = eh = 1;
1936 if (!exclude_GH && !perf_guest)
1937 eG = 1;
1938 eu = 0;
1939 } else if (*str == 'k') {
1940 if (!exclude)
1941 exclude = eu = ek = eh = 1;
1942 ek = 0;
1943 } else if (*str == 'h') {
1944 if (!exclude)
1945 exclude = eu = ek = eh = 1;
1946 eh = 0;
1947 } else if (*str == 'G') {
1948 if (!exclude_GH)
1949 exclude_GH = eG = eH = 1;
1950 eG = 0;
1951 } else if (*str == 'H') {
1952 if (!exclude_GH)
1953 exclude_GH = eG = eH = 1;
1954 eH = 0;
1955 } else if (*str == 'I') {
1956 eI = 1;
1957 } else if (*str == 'p') {
1958 precise++;
1959
1960 if (!exclude_GH)
1961 eG = 1;
1962 } else if (*str == 'P') {
1963 precise_max = 1;
1964 } else if (*str == 'S') {
1965 sample_read = 1;
1966 } else if (*str == 'D') {
1967 pinned = 1;
1968 } else if (*str == 'e') {
1969 exclusive = 1;
1970 } else if (*str == 'W') {
1971 weak = 1;
1972 } else if (*str == 'b') {
1973 bpf_counter = 1;
1974 } else
1975 break;
1976
1977 ++str;
1978 }
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990 if (precise > 3)
1991 return -EINVAL;
1992
1993 mod->eu = eu;
1994 mod->ek = ek;
1995 mod->eh = eh;
1996 mod->eH = eH;
1997 mod->eG = eG;
1998 mod->eI = eI;
1999 mod->precise = precise;
2000 mod->precise_max = precise_max;
2001 mod->exclude_GH = exclude_GH;
2002 mod->sample_read = sample_read;
2003 mod->pinned = pinned;
2004 mod->weak = weak;
2005 mod->bpf_counter = bpf_counter;
2006 mod->exclusive = exclusive;
2007
2008 return 0;
2009}
2010
2011
2012
2013
2014
2015static int check_modifier(char *str)
2016{
2017 char *p = str;
2018
2019
2020 if (strlen(str) > (sizeof("ukhGHpppPSDIWeb") - 1))
2021 return -1;
2022
2023 while (*p) {
2024 if (*p != 'p' && strchr(p + 1, *p))
2025 return -1;
2026 p++;
2027 }
2028
2029 return 0;
2030}
2031
2032int parse_events__modifier_event(struct list_head *list, char *str, bool add)
2033{
2034 struct evsel *evsel;
2035 struct event_modifier mod;
2036
2037 if (str == NULL)
2038 return 0;
2039
2040 if (check_modifier(str))
2041 return -EINVAL;
2042
2043 if (!add && get_event_modifier(&mod, str, NULL))
2044 return -EINVAL;
2045
2046 __evlist__for_each_entry(list, evsel) {
2047 if (add && get_event_modifier(&mod, str, evsel))
2048 return -EINVAL;
2049
2050 evsel->core.attr.exclude_user = mod.eu;
2051 evsel->core.attr.exclude_kernel = mod.ek;
2052 evsel->core.attr.exclude_hv = mod.eh;
2053 evsel->core.attr.precise_ip = mod.precise;
2054 evsel->core.attr.exclude_host = mod.eH;
2055 evsel->core.attr.exclude_guest = mod.eG;
2056 evsel->core.attr.exclude_idle = mod.eI;
2057 evsel->exclude_GH = mod.exclude_GH;
2058 evsel->sample_read = mod.sample_read;
2059 evsel->precise_max = mod.precise_max;
2060 evsel->weak_group = mod.weak;
2061 evsel->bpf_counter = mod.bpf_counter;
2062
2063 if (evsel__is_group_leader(evsel)) {
2064 evsel->core.attr.pinned = mod.pinned;
2065 evsel->core.attr.exclusive = mod.exclusive;
2066 }
2067 }
2068
2069 return 0;
2070}
2071
2072int parse_events_name(struct list_head *list, const char *name)
2073{
2074 struct evsel *evsel;
2075
2076 __evlist__for_each_entry(list, evsel) {
2077 if (!evsel->name)
2078 evsel->name = strdup(name);
2079 }
2080
2081 return 0;
2082}
2083
2084static int
2085comp_pmu(const void *p1, const void *p2)
2086{
2087 struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1;
2088 struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2;
2089
2090 return strcasecmp(pmu1->symbol, pmu2->symbol);
2091}
2092
2093static void perf_pmu__parse_cleanup(void)
2094{
2095 if (perf_pmu_events_list_num > 0) {
2096 struct perf_pmu_event_symbol *p;
2097 int i;
2098
2099 for (i = 0; i < perf_pmu_events_list_num; i++) {
2100 p = perf_pmu_events_list + i;
2101 zfree(&p->symbol);
2102 }
2103 zfree(&perf_pmu_events_list);
2104 perf_pmu_events_list_num = 0;
2105 }
2106}
2107
2108#define SET_SYMBOL(str, stype) \
2109do { \
2110 p->symbol = str; \
2111 if (!p->symbol) \
2112 goto err; \
2113 p->type = stype; \
2114} while (0)
2115
2116
2117
2118
2119
2120static void perf_pmu__parse_init(void)
2121{
2122
2123 struct perf_pmu *pmu = NULL;
2124 struct perf_pmu_alias *alias;
2125 int len = 0;
2126
2127 pmu = NULL;
2128 while ((pmu = perf_pmu__scan(pmu)) != NULL) {
2129 list_for_each_entry(alias, &pmu->aliases, list) {
2130 char *tmp = strchr(alias->name, '-');
2131
2132 if (tmp) {
2133 char *tmp2 = NULL;
2134
2135 tmp2 = strchr(tmp + 1, '-');
2136 len++;
2137 if (tmp2)
2138 len++;
2139 }
2140
2141 len++;
2142 }
2143 }
2144
2145 if (len == 0) {
2146 perf_pmu_events_list_num = -1;
2147 return;
2148 }
2149 perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len);
2150 if (!perf_pmu_events_list)
2151 return;
2152 perf_pmu_events_list_num = len;
2153
2154 len = 0;
2155 pmu = NULL;
2156 while ((pmu = perf_pmu__scan(pmu)) != NULL) {
2157 list_for_each_entry(alias, &pmu->aliases, list) {
2158 struct perf_pmu_event_symbol *p = perf_pmu_events_list + len;
2159 char *tmp = strchr(alias->name, '-');
2160 char *tmp2 = NULL;
2161
2162 if (tmp)
2163 tmp2 = strchr(tmp + 1, '-');
2164 if (tmp2) {
2165 SET_SYMBOL(strndup(alias->name, tmp - alias->name),
2166 PMU_EVENT_SYMBOL_PREFIX);
2167 p++;
2168 tmp++;
2169 SET_SYMBOL(strndup(tmp, tmp2 - tmp), PMU_EVENT_SYMBOL_SUFFIX);
2170 p++;
2171 SET_SYMBOL(strdup(++tmp2), PMU_EVENT_SYMBOL_SUFFIX2);
2172 len += 3;
2173 } else if (tmp) {
2174 SET_SYMBOL(strndup(alias->name, tmp - alias->name),
2175 PMU_EVENT_SYMBOL_PREFIX);
2176 p++;
2177 SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX);
2178 len += 2;
2179 } else {
2180 SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL);
2181 len++;
2182 }
2183 }
2184 }
2185 qsort(perf_pmu_events_list, len,
2186 sizeof(struct perf_pmu_event_symbol), comp_pmu);
2187
2188 return;
2189err:
2190 perf_pmu__parse_cleanup();
2191}
2192
2193
2194
2195
2196
2197
2198int perf_pmu__test_parse_init(void)
2199{
2200 struct perf_pmu_event_symbol *list, *tmp, symbols[] = {
2201 {(char *)"read", PMU_EVENT_SYMBOL},
2202 {(char *)"event", PMU_EVENT_SYMBOL_PREFIX},
2203 {(char *)"two", PMU_EVENT_SYMBOL_SUFFIX},
2204 {(char *)"hyphen", PMU_EVENT_SYMBOL_SUFFIX},
2205 {(char *)"hyph", PMU_EVENT_SYMBOL_SUFFIX2},
2206 };
2207 unsigned long i, j;
2208
2209 tmp = list = malloc(sizeof(*list) * ARRAY_SIZE(symbols));
2210 if (!list)
2211 return -ENOMEM;
2212
2213 for (i = 0; i < ARRAY_SIZE(symbols); i++, tmp++) {
2214 tmp->type = symbols[i].type;
2215 tmp->symbol = strdup(symbols[i].symbol);
2216 if (!tmp->symbol)
2217 goto err_free;
2218 }
2219
2220 perf_pmu_events_list = list;
2221 perf_pmu_events_list_num = ARRAY_SIZE(symbols);
2222
2223 qsort(perf_pmu_events_list, ARRAY_SIZE(symbols),
2224 sizeof(struct perf_pmu_event_symbol), comp_pmu);
2225 return 0;
2226
2227err_free:
2228 for (j = 0, tmp = list; j < i; j++, tmp++)
2229 free(tmp->symbol);
2230 free(list);
2231 return -ENOMEM;
2232}
2233
2234enum perf_pmu_event_symbol_type
2235perf_pmu__parse_check(const char *name)
2236{
2237 struct perf_pmu_event_symbol p, *r;
2238
2239
2240 if (perf_pmu_events_list_num == 0)
2241 perf_pmu__parse_init();
2242
2243
2244
2245
2246
2247 if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu"))
2248 return PMU_EVENT_SYMBOL_ERR;
2249
2250 p.symbol = strdup(name);
2251 r = bsearch(&p, perf_pmu_events_list,
2252 (size_t) perf_pmu_events_list_num,
2253 sizeof(struct perf_pmu_event_symbol), comp_pmu);
2254 zfree(&p.symbol);
2255 return r ? r->type : PMU_EVENT_SYMBOL_ERR;
2256}
2257
2258static int parse_events__scanner(const char *str,
2259 struct parse_events_state *parse_state)
2260{
2261 YY_BUFFER_STATE buffer;
2262 void *scanner;
2263 int ret;
2264
2265 ret = parse_events_lex_init_extra(parse_state, &scanner);
2266 if (ret)
2267 return ret;
2268
2269 buffer = parse_events__scan_string(str, scanner);
2270
2271#ifdef PARSER_DEBUG
2272 parse_events_debug = 1;
2273 parse_events_set_debug(1, scanner);
2274#endif
2275 ret = parse_events_parse(parse_state, scanner);
2276
2277 parse_events__flush_buffer(buffer, scanner);
2278 parse_events__delete_buffer(buffer, scanner);
2279 parse_events_lex_destroy(scanner);
2280 return ret;
2281}
2282
2283
2284
2285
2286int parse_events_terms(struct list_head *terms, const char *str)
2287{
2288 struct parse_events_state parse_state = {
2289 .terms = NULL,
2290 .stoken = PE_START_TERMS,
2291 };
2292 int ret;
2293
2294 ret = parse_events__scanner(str, &parse_state);
2295 perf_pmu__parse_cleanup();
2296
2297 if (!ret) {
2298 list_splice(parse_state.terms, terms);
2299 zfree(&parse_state.terms);
2300 return 0;
2301 }
2302
2303 parse_events_terms__delete(parse_state.terms);
2304 return ret;
2305}
2306
2307static int parse_events__with_hybrid_pmu(struct parse_events_state *parse_state,
2308 const char *str, char *pmu_name,
2309 struct list_head *list)
2310{
2311 struct parse_events_state ps = {
2312 .list = LIST_HEAD_INIT(ps.list),
2313 .stoken = PE_START_EVENTS,
2314 .hybrid_pmu_name = pmu_name,
2315 .idx = parse_state->idx,
2316 };
2317 int ret;
2318
2319 ret = parse_events__scanner(str, &ps);
2320 perf_pmu__parse_cleanup();
2321
2322 if (!ret) {
2323 if (!list_empty(&ps.list)) {
2324 list_splice(&ps.list, list);
2325 parse_state->idx = ps.idx;
2326 return 0;
2327 } else
2328 return -1;
2329 }
2330
2331 return ret;
2332}
2333
2334int __parse_events(struct evlist *evlist, const char *str,
2335 struct parse_events_error *err, struct perf_pmu *fake_pmu)
2336{
2337 struct parse_events_state parse_state = {
2338 .list = LIST_HEAD_INIT(parse_state.list),
2339 .idx = evlist->core.nr_entries,
2340 .error = err,
2341 .evlist = evlist,
2342 .stoken = PE_START_EVENTS,
2343 .fake_pmu = fake_pmu,
2344 };
2345 int ret;
2346
2347 ret = parse_events__scanner(str, &parse_state);
2348 perf_pmu__parse_cleanup();
2349
2350 if (!ret && list_empty(&parse_state.list)) {
2351 WARN_ONCE(true, "WARNING: event parser found nothing\n");
2352 return -1;
2353 }
2354
2355
2356
2357
2358 evlist__splice_list_tail(evlist, &parse_state.list);
2359
2360 if (!ret) {
2361 struct evsel *last;
2362
2363 evlist->core.nr_groups += parse_state.nr_groups;
2364 last = evlist__last(evlist);
2365 last->cmdline_group_boundary = true;
2366
2367 return 0;
2368 }
2369
2370
2371
2372
2373
2374
2375 return ret;
2376}
2377
2378void parse_events_error__init(struct parse_events_error *err)
2379{
2380 bzero(err, sizeof(*err));
2381}
2382
2383void parse_events_error__exit(struct parse_events_error *err)
2384{
2385 zfree(&err->str);
2386 zfree(&err->help);
2387 zfree(&err->first_str);
2388 zfree(&err->first_help);
2389}
2390
2391void parse_events_error__handle(struct parse_events_error *err, int idx,
2392 char *str, char *help)
2393{
2394 if (WARN(!str, "WARNING: failed to provide error string\n")) {
2395 free(help);
2396 return;
2397 }
2398 switch (err->num_errors) {
2399 case 0:
2400 err->idx = idx;
2401 err->str = str;
2402 err->help = help;
2403 break;
2404 case 1:
2405 err->first_idx = err->idx;
2406 err->idx = idx;
2407 err->first_str = err->str;
2408 err->str = str;
2409 err->first_help = err->help;
2410 err->help = help;
2411 break;
2412 default:
2413 pr_debug("Multiple errors dropping message: %s (%s)\n",
2414 err->str, err->help);
2415 free(err->str);
2416 err->str = str;
2417 free(err->help);
2418 err->help = help;
2419 break;
2420 }
2421 err->num_errors++;
2422}
2423
2424#define MAX_WIDTH 1000
2425static int get_term_width(void)
2426{
2427 struct winsize ws;
2428
2429 get_term_dimensions(&ws);
2430 return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col;
2431}
2432
2433static void __parse_events_error__print(int err_idx, const char *err_str,
2434 const char *err_help, const char *event)
2435{
2436 const char *str = "invalid or unsupported event: ";
2437 char _buf[MAX_WIDTH];
2438 char *buf = (char *) event;
2439 int idx = 0;
2440 if (err_str) {
2441
2442 int width = get_term_width() - 2;
2443 int len_event = strlen(event);
2444 int len_str, max_len, cut = 0;
2445
2446
2447
2448
2449
2450 int max_err_idx = 13;
2451
2452
2453
2454
2455
2456 str = "event syntax error: ";
2457 len_str = strlen(str);
2458 max_len = width - len_str;
2459
2460 buf = _buf;
2461
2462
2463 if (err_idx > max_err_idx)
2464 cut = err_idx - max_err_idx;
2465
2466 strncpy(buf, event + cut, max_len);
2467
2468
2469 if (cut)
2470 buf[0] = buf[1] = '.';
2471
2472 if ((len_event - cut) > max_len) {
2473 buf[max_len - 1] = buf[max_len - 2] = '.';
2474 buf[max_len] = 0;
2475 }
2476
2477 idx = len_str + err_idx - cut;
2478 }
2479
2480 fprintf(stderr, "%s'%s'\n", str, buf);
2481 if (idx) {
2482 fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err_str);
2483 if (err_help)
2484 fprintf(stderr, "\n%s\n", err_help);
2485 }
2486}
2487
2488void parse_events_error__print(struct parse_events_error *err,
2489 const char *event)
2490{
2491 if (!err->num_errors)
2492 return;
2493
2494 __parse_events_error__print(err->idx, err->str, err->help, event);
2495
2496 if (err->num_errors > 1) {
2497 fputs("\nInitial error:\n", stderr);
2498 __parse_events_error__print(err->first_idx, err->first_str,
2499 err->first_help, event);
2500 }
2501}
2502
2503#undef MAX_WIDTH
2504
2505int parse_events_option(const struct option *opt, const char *str,
2506 int unset __maybe_unused)
2507{
2508 struct evlist *evlist = *(struct evlist **)opt->value;
2509 struct parse_events_error err;
2510 int ret;
2511
2512 parse_events_error__init(&err);
2513 ret = parse_events(evlist, str, &err);
2514
2515 if (ret) {
2516 parse_events_error__print(&err, str);
2517 fprintf(stderr, "Run 'perf list' for a list of valid events\n");
2518 }
2519 parse_events_error__exit(&err);
2520
2521 return ret;
2522}
2523
2524int parse_events_option_new_evlist(const struct option *opt, const char *str, int unset)
2525{
2526 struct evlist **evlistp = opt->value;
2527 int ret;
2528
2529 if (*evlistp == NULL) {
2530 *evlistp = evlist__new();
2531
2532 if (*evlistp == NULL) {
2533 fprintf(stderr, "Not enough memory to create evlist\n");
2534 return -1;
2535 }
2536 }
2537
2538 ret = parse_events_option(opt, str, unset);
2539 if (ret) {
2540 evlist__delete(*evlistp);
2541 *evlistp = NULL;
2542 }
2543
2544 return ret;
2545}
2546
2547static int
2548foreach_evsel_in_last_glob(struct evlist *evlist,
2549 int (*func)(struct evsel *evsel,
2550 const void *arg),
2551 const void *arg)
2552{
2553 struct evsel *last = NULL;
2554 int err;
2555
2556
2557
2558
2559
2560
2561
2562 if (evlist->core.nr_entries > 0)
2563 last = evlist__last(evlist);
2564
2565 do {
2566 err = (*func)(last, arg);
2567 if (err)
2568 return -1;
2569 if (!last)
2570 return 0;
2571
2572 if (last->core.node.prev == &evlist->core.entries)
2573 return 0;
2574 last = list_entry(last->core.node.prev, struct evsel, core.node);
2575 } while (!last->cmdline_group_boundary);
2576
2577 return 0;
2578}
2579
2580static int set_filter(struct evsel *evsel, const void *arg)
2581{
2582 const char *str = arg;
2583 bool found = false;
2584 int nr_addr_filters = 0;
2585 struct perf_pmu *pmu = NULL;
2586
2587 if (evsel == NULL) {
2588 fprintf(stderr,
2589 "--filter option should follow a -e tracepoint or HW tracer option\n");
2590 return -1;
2591 }
2592
2593 if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT) {
2594 if (evsel__append_tp_filter(evsel, str) < 0) {
2595 fprintf(stderr,
2596 "not enough memory to hold filter string\n");
2597 return -1;
2598 }
2599
2600 return 0;
2601 }
2602
2603 while ((pmu = perf_pmu__scan(pmu)) != NULL)
2604 if (pmu->type == evsel->core.attr.type) {
2605 found = true;
2606 break;
2607 }
2608
2609 if (found)
2610 perf_pmu__scan_file(pmu, "nr_addr_filters",
2611 "%d", &nr_addr_filters);
2612
2613 if (!nr_addr_filters) {
2614 fprintf(stderr,
2615 "This CPU does not support address filtering\n");
2616 return -1;
2617 }
2618
2619 if (evsel__append_addr_filter(evsel, str) < 0) {
2620 fprintf(stderr,
2621 "not enough memory to hold filter string\n");
2622 return -1;
2623 }
2624
2625 return 0;
2626}
2627
2628int parse_filter(const struct option *opt, const char *str,
2629 int unset __maybe_unused)
2630{
2631 struct evlist *evlist = *(struct evlist **)opt->value;
2632
2633 return foreach_evsel_in_last_glob(evlist, set_filter,
2634 (const void *)str);
2635}
2636
2637static int add_exclude_perf_filter(struct evsel *evsel,
2638 const void *arg __maybe_unused)
2639{
2640 char new_filter[64];
2641
2642 if (evsel == NULL || evsel->core.attr.type != PERF_TYPE_TRACEPOINT) {
2643 fprintf(stderr,
2644 "--exclude-perf option should follow a -e tracepoint option\n");
2645 return -1;
2646 }
2647
2648 snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid());
2649
2650 if (evsel__append_tp_filter(evsel, new_filter) < 0) {
2651 fprintf(stderr,
2652 "not enough memory to hold filter string\n");
2653 return -1;
2654 }
2655
2656 return 0;
2657}
2658
2659int exclude_perf(const struct option *opt,
2660 const char *arg __maybe_unused,
2661 int unset __maybe_unused)
2662{
2663 struct evlist *evlist = *(struct evlist **)opt->value;
2664
2665 return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter,
2666 NULL);
2667}
2668
2669static const char * const event_type_descriptors[] = {
2670 "Hardware event",
2671 "Software event",
2672 "Tracepoint event",
2673 "Hardware cache event",
2674 "Raw hardware event descriptor",
2675 "Hardware breakpoint",
2676};
2677
2678static int cmp_string(const void *a, const void *b)
2679{
2680 const char * const *as = a;
2681 const char * const *bs = b;
2682
2683 return strcmp(*as, *bs);
2684}
2685
2686
2687
2688
2689
2690void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
2691 bool name_only)
2692{
2693 DIR *sys_dir, *evt_dir;
2694 struct dirent *sys_dirent, *evt_dirent;
2695 char evt_path[MAXPATHLEN];
2696 char *dir_path;
2697 char **evt_list = NULL;
2698 unsigned int evt_i = 0, evt_num = 0;
2699 bool evt_num_known = false;
2700
2701restart:
2702 sys_dir = tracing_events__opendir();
2703 if (!sys_dir)
2704 return;
2705
2706 if (evt_num_known) {
2707 evt_list = zalloc(sizeof(char *) * evt_num);
2708 if (!evt_list)
2709 goto out_close_sys_dir;
2710 }
2711
2712 for_each_subsystem(sys_dir, sys_dirent) {
2713 if (subsys_glob != NULL &&
2714 !strglobmatch(sys_dirent->d_name, subsys_glob))
2715 continue;
2716
2717 dir_path = get_events_file(sys_dirent->d_name);
2718 if (!dir_path)
2719 continue;
2720 evt_dir = opendir(dir_path);
2721 if (!evt_dir)
2722 goto next;
2723
2724 for_each_event(dir_path, evt_dir, evt_dirent) {
2725 if (event_glob != NULL &&
2726 !strglobmatch(evt_dirent->d_name, event_glob))
2727 continue;
2728
2729 if (!evt_num_known) {
2730 evt_num++;
2731 continue;
2732 }
2733
2734 snprintf(evt_path, MAXPATHLEN, "%s:%s",
2735 sys_dirent->d_name, evt_dirent->d_name);
2736
2737 evt_list[evt_i] = strdup(evt_path);
2738 if (evt_list[evt_i] == NULL) {
2739 put_events_file(dir_path);
2740 goto out_close_evt_dir;
2741 }
2742 evt_i++;
2743 }
2744 closedir(evt_dir);
2745next:
2746 put_events_file(dir_path);
2747 }
2748 closedir(sys_dir);
2749
2750 if (!evt_num_known) {
2751 evt_num_known = true;
2752 goto restart;
2753 }
2754 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
2755 evt_i = 0;
2756 while (evt_i < evt_num) {
2757 if (name_only) {
2758 printf("%s ", evt_list[evt_i++]);
2759 continue;
2760 }
2761 printf(" %-50s [%s]\n", evt_list[evt_i++],
2762 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
2763 }
2764 if (evt_num && pager_in_use())
2765 printf("\n");
2766
2767out_free:
2768 evt_num = evt_i;
2769 for (evt_i = 0; evt_i < evt_num; evt_i++)
2770 zfree(&evt_list[evt_i]);
2771 zfree(&evt_list);
2772 return;
2773
2774out_close_evt_dir:
2775 closedir(evt_dir);
2776out_close_sys_dir:
2777 closedir(sys_dir);
2778
2779 printf("FATAL: not enough memory to print %s\n",
2780 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
2781 if (evt_list)
2782 goto out_free;
2783}
2784
2785
2786
2787
2788
2789int is_valid_tracepoint(const char *event_string)
2790{
2791 DIR *sys_dir, *evt_dir;
2792 struct dirent *sys_dirent, *evt_dirent;
2793 char evt_path[MAXPATHLEN];
2794 char *dir_path;
2795
2796 sys_dir = tracing_events__opendir();
2797 if (!sys_dir)
2798 return 0;
2799
2800 for_each_subsystem(sys_dir, sys_dirent) {
2801 dir_path = get_events_file(sys_dirent->d_name);
2802 if (!dir_path)
2803 continue;
2804 evt_dir = opendir(dir_path);
2805 if (!evt_dir)
2806 goto next;
2807
2808 for_each_event(dir_path, evt_dir, evt_dirent) {
2809 snprintf(evt_path, MAXPATHLEN, "%s:%s",
2810 sys_dirent->d_name, evt_dirent->d_name);
2811 if (!strcmp(evt_path, event_string)) {
2812 closedir(evt_dir);
2813 closedir(sys_dir);
2814 return 1;
2815 }
2816 }
2817 closedir(evt_dir);
2818next:
2819 put_events_file(dir_path);
2820 }
2821 closedir(sys_dir);
2822 return 0;
2823}
2824
2825static bool is_event_supported(u8 type, u64 config)
2826{
2827 bool ret = true;
2828 int open_return;
2829 struct evsel *evsel;
2830 struct perf_event_attr attr = {
2831 .type = type,
2832 .config = config,
2833 .disabled = 1,
2834 };
2835 struct perf_thread_map *tmap = thread_map__new_by_tid(0);
2836
2837 if (tmap == NULL)
2838 return false;
2839
2840 evsel = evsel__new(&attr);
2841 if (evsel) {
2842 open_return = evsel__open(evsel, NULL, tmap);
2843 ret = open_return >= 0;
2844
2845 if (open_return == -EACCES) {
2846
2847
2848
2849
2850
2851
2852
2853 evsel->core.attr.exclude_kernel = 1;
2854 ret = evsel__open(evsel, NULL, tmap) >= 0;
2855 }
2856 evsel__delete(evsel);
2857 }
2858
2859 perf_thread_map__put(tmap);
2860 return ret;
2861}
2862
2863void print_sdt_events(const char *subsys_glob, const char *event_glob,
2864 bool name_only)
2865{
2866 struct probe_cache *pcache;
2867 struct probe_cache_entry *ent;
2868 struct strlist *bidlist, *sdtlist;
2869 struct strlist_config cfg = {.dont_dupstr = true};
2870 struct str_node *nd, *nd2;
2871 char *buf, *path, *ptr = NULL;
2872 bool show_detail = false;
2873 int ret;
2874
2875 sdtlist = strlist__new(NULL, &cfg);
2876 if (!sdtlist) {
2877 pr_debug("Failed to allocate new strlist for SDT\n");
2878 return;
2879 }
2880 bidlist = build_id_cache__list_all(true);
2881 if (!bidlist) {
2882 pr_debug("Failed to get buildids: %d\n", errno);
2883 return;
2884 }
2885 strlist__for_each_entry(nd, bidlist) {
2886 pcache = probe_cache__new(nd->s, NULL);
2887 if (!pcache)
2888 continue;
2889 list_for_each_entry(ent, &pcache->entries, node) {
2890 if (!ent->sdt)
2891 continue;
2892 if (subsys_glob &&
2893 !strglobmatch(ent->pev.group, subsys_glob))
2894 continue;
2895 if (event_glob &&
2896 !strglobmatch(ent->pev.event, event_glob))
2897 continue;
2898 ret = asprintf(&buf, "%s:%s@%s", ent->pev.group,
2899 ent->pev.event, nd->s);
2900 if (ret > 0)
2901 strlist__add(sdtlist, buf);
2902 }
2903 probe_cache__delete(pcache);
2904 }
2905 strlist__delete(bidlist);
2906
2907 strlist__for_each_entry(nd, sdtlist) {
2908 buf = strchr(nd->s, '@');
2909 if (buf)
2910 *(buf++) = '\0';
2911 if (name_only) {
2912 printf("%s ", nd->s);
2913 continue;
2914 }
2915 nd2 = strlist__next(nd);
2916 if (nd2) {
2917 ptr = strchr(nd2->s, '@');
2918 if (ptr)
2919 *ptr = '\0';
2920 if (strcmp(nd->s, nd2->s) == 0)
2921 show_detail = true;
2922 }
2923 if (show_detail) {
2924 path = build_id_cache__origname(buf);
2925 ret = asprintf(&buf, "%s@%s(%.12s)", nd->s, path, buf);
2926 if (ret > 0) {
2927 printf(" %-50s [%s]\n", buf, "SDT event");
2928 free(buf);
2929 }
2930 free(path);
2931 } else
2932 printf(" %-50s [%s]\n", nd->s, "SDT event");
2933 if (nd2) {
2934 if (strcmp(nd->s, nd2->s) != 0)
2935 show_detail = false;
2936 if (ptr)
2937 *ptr = '@';
2938 }
2939 }
2940 strlist__delete(sdtlist);
2941}
2942
2943int print_hwcache_events(const char *event_glob, bool name_only)
2944{
2945 unsigned int type, op, i, evt_i = 0, evt_num = 0, npmus = 0;
2946 char name[64], new_name[128];
2947 char **evt_list = NULL, **evt_pmus = NULL;
2948 bool evt_num_known = false;
2949 struct perf_pmu *pmu = NULL;
2950
2951 if (perf_pmu__has_hybrid()) {
2952 npmus = perf_pmu__hybrid_pmu_num();
2953 evt_pmus = zalloc(sizeof(char *) * npmus);
2954 if (!evt_pmus)
2955 goto out_enomem;
2956 }
2957
2958restart:
2959 if (evt_num_known) {
2960 evt_list = zalloc(sizeof(char *) * evt_num);
2961 if (!evt_list)
2962 goto out_enomem;
2963 }
2964
2965 for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
2966 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
2967
2968 if (!evsel__is_cache_op_valid(type, op))
2969 continue;
2970
2971 for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
2972 unsigned int hybrid_supported = 0, j;
2973 bool supported;
2974
2975 __evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name));
2976 if (event_glob != NULL && !strglobmatch(name, event_glob))
2977 continue;
2978
2979 if (!perf_pmu__has_hybrid()) {
2980 if (!is_event_supported(PERF_TYPE_HW_CACHE,
2981 type | (op << 8) | (i << 16))) {
2982 continue;
2983 }
2984 } else {
2985 perf_pmu__for_each_hybrid_pmu(pmu) {
2986 if (!evt_num_known) {
2987 evt_num++;
2988 continue;
2989 }
2990
2991 supported = is_event_supported(
2992 PERF_TYPE_HW_CACHE,
2993 type | (op << 8) | (i << 16) |
2994 ((__u64)pmu->type << PERF_PMU_TYPE_SHIFT));
2995 if (supported) {
2996 snprintf(new_name, sizeof(new_name), "%s/%s/",
2997 pmu->name, name);
2998 evt_pmus[hybrid_supported] = strdup(new_name);
2999 hybrid_supported++;
3000 }
3001 }
3002
3003 if (hybrid_supported == 0)
3004 continue;
3005 }
3006
3007 if (!evt_num_known) {
3008 evt_num++;
3009 continue;
3010 }
3011
3012 if ((hybrid_supported == 0) ||
3013 (hybrid_supported == npmus)) {
3014 evt_list[evt_i] = strdup(name);
3015 if (npmus > 0) {
3016 for (j = 0; j < npmus; j++)
3017 zfree(&evt_pmus[j]);
3018 }
3019 } else {
3020 for (j = 0; j < hybrid_supported; j++) {
3021 evt_list[evt_i++] = evt_pmus[j];
3022 evt_pmus[j] = NULL;
3023 }
3024 continue;
3025 }
3026
3027 if (evt_list[evt_i] == NULL)
3028 goto out_enomem;
3029 evt_i++;
3030 }
3031 }
3032 }
3033
3034 if (!evt_num_known) {
3035 evt_num_known = true;
3036 goto restart;
3037 }
3038
3039 for (evt_i = 0; evt_i < evt_num; evt_i++) {
3040 if (!evt_list[evt_i])
3041 break;
3042 }
3043
3044 evt_num = evt_i;
3045 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
3046 evt_i = 0;
3047 while (evt_i < evt_num) {
3048 if (name_only) {
3049 printf("%s ", evt_list[evt_i++]);
3050 continue;
3051 }
3052 printf(" %-50s [%s]\n", evt_list[evt_i++],
3053 event_type_descriptors[PERF_TYPE_HW_CACHE]);
3054 }
3055 if (evt_num && pager_in_use())
3056 printf("\n");
3057
3058out_free:
3059 evt_num = evt_i;
3060 for (evt_i = 0; evt_i < evt_num; evt_i++)
3061 zfree(&evt_list[evt_i]);
3062 zfree(&evt_list);
3063
3064 for (evt_i = 0; evt_i < npmus; evt_i++)
3065 zfree(&evt_pmus[evt_i]);
3066 zfree(&evt_pmus);
3067 return evt_num;
3068
3069out_enomem:
3070 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]);
3071 if (evt_list)
3072 goto out_free;
3073 return evt_num;
3074}
3075
3076static void print_tool_event(const struct event_symbol *syms, const char *event_glob,
3077 bool name_only)
3078{
3079 if (syms->symbol == NULL)
3080 return;
3081
3082 if (event_glob && !(strglobmatch(syms->symbol, event_glob) ||
3083 (syms->alias && strglobmatch(syms->alias, event_glob))))
3084 return;
3085
3086 if (name_only)
3087 printf("%s ", syms->symbol);
3088 else {
3089 char name[MAX_NAME_LEN];
3090 if (syms->alias && strlen(syms->alias))
3091 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
3092 else
3093 strlcpy(name, syms->symbol, MAX_NAME_LEN);
3094 printf(" %-50s [%s]\n", name, "Tool event");
3095 }
3096}
3097
3098void print_tool_events(const char *event_glob, bool name_only)
3099{
3100
3101 for (int i = 1; i < PERF_TOOL_MAX; ++i) {
3102 print_tool_event(event_symbols_tool + i, event_glob, name_only);
3103 }
3104 if (pager_in_use())
3105 printf("\n");
3106}
3107
3108void print_symbol_events(const char *event_glob, unsigned type,
3109 struct event_symbol *syms, unsigned max,
3110 bool name_only)
3111{
3112 unsigned int i, evt_i = 0, evt_num = 0;
3113 char name[MAX_NAME_LEN];
3114 char **evt_list = NULL;
3115 bool evt_num_known = false;
3116
3117restart:
3118 if (evt_num_known) {
3119 evt_list = zalloc(sizeof(char *) * evt_num);
3120 if (!evt_list)
3121 goto out_enomem;
3122 syms -= max;
3123 }
3124
3125 for (i = 0; i < max; i++, syms++) {
3126
3127
3128
3129
3130 if (syms->symbol == NULL)
3131 continue;
3132
3133 if (event_glob != NULL && !(strglobmatch(syms->symbol, event_glob) ||
3134 (syms->alias && strglobmatch(syms->alias, event_glob))))
3135 continue;
3136
3137 if (!is_event_supported(type, i))
3138 continue;
3139
3140 if (!evt_num_known) {
3141 evt_num++;
3142 continue;
3143 }
3144
3145 if (!name_only && strlen(syms->alias))
3146 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
3147 else
3148 strlcpy(name, syms->symbol, MAX_NAME_LEN);
3149
3150 evt_list[evt_i] = strdup(name);
3151 if (evt_list[evt_i] == NULL)
3152 goto out_enomem;
3153 evt_i++;
3154 }
3155
3156 if (!evt_num_known) {
3157 evt_num_known = true;
3158 goto restart;
3159 }
3160 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
3161 evt_i = 0;
3162 while (evt_i < evt_num) {
3163 if (name_only) {
3164 printf("%s ", evt_list[evt_i++]);
3165 continue;
3166 }
3167 printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]);
3168 }
3169 if (evt_num && pager_in_use())
3170 printf("\n");
3171
3172out_free:
3173 evt_num = evt_i;
3174 for (evt_i = 0; evt_i < evt_num; evt_i++)
3175 zfree(&evt_list[evt_i]);
3176 zfree(&evt_list);
3177 return;
3178
3179out_enomem:
3180 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]);
3181 if (evt_list)
3182 goto out_free;
3183}
3184
3185
3186
3187
3188void print_events(const char *event_glob, bool name_only, bool quiet_flag,
3189 bool long_desc, bool details_flag, bool deprecated,
3190 const char *pmu_name)
3191{
3192 print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
3193 event_symbols_hw, PERF_COUNT_HW_MAX, name_only);
3194
3195 print_symbol_events(event_glob, PERF_TYPE_SOFTWARE,
3196 event_symbols_sw, PERF_COUNT_SW_MAX, name_only);
3197 print_tool_events(event_glob, name_only);
3198
3199 print_hwcache_events(event_glob, name_only);
3200
3201 print_pmu_events(event_glob, name_only, quiet_flag, long_desc,
3202 details_flag, deprecated, pmu_name);
3203
3204 if (event_glob != NULL)
3205 return;
3206
3207 if (!name_only) {
3208 printf(" %-50s [%s]\n",
3209 "rNNN",
3210 event_type_descriptors[PERF_TYPE_RAW]);
3211 printf(" %-50s [%s]\n",
3212 "cpu/t1=v1[,t2=v2,t3 ...]/modifier",
3213 event_type_descriptors[PERF_TYPE_RAW]);
3214 if (pager_in_use())
3215 printf(" (see 'man perf-list' on how to encode it)\n\n");
3216
3217 printf(" %-50s [%s]\n",
3218 "mem:<addr>[/len][:access]",
3219 event_type_descriptors[PERF_TYPE_BREAKPOINT]);
3220 if (pager_in_use())
3221 printf("\n");
3222 }
3223
3224 print_tracepoint_events(NULL, NULL, name_only);
3225
3226 print_sdt_events(NULL, NULL, name_only);
3227
3228 metricgroup__print(true, true, NULL, name_only, details_flag,
3229 pmu_name);
3230
3231 print_libpfm_events(name_only, long_desc);
3232}
3233
3234int parse_events__is_hardcoded_term(struct parse_events_term *term)
3235{
3236 return term->type_term != PARSE_EVENTS__TERM_TYPE_USER;
3237}
3238
3239static int new_term(struct parse_events_term **_term,
3240 struct parse_events_term *temp,
3241 char *str, u64 num)
3242{
3243 struct parse_events_term *term;
3244
3245 term = malloc(sizeof(*term));
3246 if (!term)
3247 return -ENOMEM;
3248
3249 *term = *temp;
3250 INIT_LIST_HEAD(&term->list);
3251 term->weak = false;
3252
3253 switch (term->type_val) {
3254 case PARSE_EVENTS__TERM_TYPE_NUM:
3255 term->val.num = num;
3256 break;
3257 case PARSE_EVENTS__TERM_TYPE_STR:
3258 term->val.str = str;
3259 break;
3260 default:
3261 free(term);
3262 return -EINVAL;
3263 }
3264
3265 *_term = term;
3266 return 0;
3267}
3268
3269int parse_events_term__num(struct parse_events_term **term,
3270 int type_term, char *config, u64 num,
3271 bool no_value,
3272 void *loc_term_, void *loc_val_)
3273{
3274 YYLTYPE *loc_term = loc_term_;
3275 YYLTYPE *loc_val = loc_val_;
3276
3277 struct parse_events_term temp = {
3278 .type_val = PARSE_EVENTS__TERM_TYPE_NUM,
3279 .type_term = type_term,
3280 .config = config ? : strdup(config_term_names[type_term]),
3281 .no_value = no_value,
3282 .err_term = loc_term ? loc_term->first_column : 0,
3283 .err_val = loc_val ? loc_val->first_column : 0,
3284 };
3285
3286 return new_term(term, &temp, NULL, num);
3287}
3288
3289int parse_events_term__str(struct parse_events_term **term,
3290 int type_term, char *config, char *str,
3291 void *loc_term_, void *loc_val_)
3292{
3293 YYLTYPE *loc_term = loc_term_;
3294 YYLTYPE *loc_val = loc_val_;
3295
3296 struct parse_events_term temp = {
3297 .type_val = PARSE_EVENTS__TERM_TYPE_STR,
3298 .type_term = type_term,
3299 .config = config,
3300 .err_term = loc_term ? loc_term->first_column : 0,
3301 .err_val = loc_val ? loc_val->first_column : 0,
3302 };
3303
3304 return new_term(term, &temp, str, 0);
3305}
3306
3307int parse_events_term__sym_hw(struct parse_events_term **term,
3308 char *config, unsigned idx)
3309{
3310 struct event_symbol *sym;
3311 char *str;
3312 struct parse_events_term temp = {
3313 .type_val = PARSE_EVENTS__TERM_TYPE_STR,
3314 .type_term = PARSE_EVENTS__TERM_TYPE_USER,
3315 .config = config,
3316 };
3317
3318 if (!temp.config) {
3319 temp.config = strdup("event");
3320 if (!temp.config)
3321 return -ENOMEM;
3322 }
3323 BUG_ON(idx >= PERF_COUNT_HW_MAX);
3324 sym = &event_symbols_hw[idx];
3325
3326 str = strdup(sym->symbol);
3327 if (!str)
3328 return -ENOMEM;
3329 return new_term(term, &temp, str, 0);
3330}
3331
3332int parse_events_term__clone(struct parse_events_term **new,
3333 struct parse_events_term *term)
3334{
3335 char *str;
3336 struct parse_events_term temp = {
3337 .type_val = term->type_val,
3338 .type_term = term->type_term,
3339 .config = NULL,
3340 .err_term = term->err_term,
3341 .err_val = term->err_val,
3342 };
3343
3344 if (term->config) {
3345 temp.config = strdup(term->config);
3346 if (!temp.config)
3347 return -ENOMEM;
3348 }
3349 if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM)
3350 return new_term(new, &temp, NULL, term->val.num);
3351
3352 str = strdup(term->val.str);
3353 if (!str)
3354 return -ENOMEM;
3355 return new_term(new, &temp, str, 0);
3356}
3357
3358void parse_events_term__delete(struct parse_events_term *term)
3359{
3360 if (term->array.nr_ranges)
3361 zfree(&term->array.ranges);
3362
3363 if (term->type_val != PARSE_EVENTS__TERM_TYPE_NUM)
3364 zfree(&term->val.str);
3365
3366 zfree(&term->config);
3367 free(term);
3368}
3369
3370int parse_events_copy_term_list(struct list_head *old,
3371 struct list_head **new)
3372{
3373 struct parse_events_term *term, *n;
3374 int ret;
3375
3376 if (!old) {
3377 *new = NULL;
3378 return 0;
3379 }
3380
3381 *new = malloc(sizeof(struct list_head));
3382 if (!*new)
3383 return -ENOMEM;
3384 INIT_LIST_HEAD(*new);
3385
3386 list_for_each_entry (term, old, list) {
3387 ret = parse_events_term__clone(&n, term);
3388 if (ret)
3389 return ret;
3390 list_add_tail(&n->list, *new);
3391 }
3392 return 0;
3393}
3394
3395void parse_events_terms__purge(struct list_head *terms)
3396{
3397 struct parse_events_term *term, *h;
3398
3399 list_for_each_entry_safe(term, h, terms, list) {
3400 list_del_init(&term->list);
3401 parse_events_term__delete(term);
3402 }
3403}
3404
3405void parse_events_terms__delete(struct list_head *terms)
3406{
3407 if (!terms)
3408 return;
3409 parse_events_terms__purge(terms);
3410 free(terms);
3411}
3412
3413void parse_events__clear_array(struct parse_events_array *a)
3414{
3415 zfree(&a->ranges);
3416}
3417
3418void parse_events_evlist_error(struct parse_events_state *parse_state,
3419 int idx, const char *str)
3420{
3421 if (!parse_state->error)
3422 return;
3423
3424 parse_events_error__handle(parse_state->error, idx, strdup(str), NULL);
3425}
3426
3427static void config_terms_list(char *buf, size_t buf_sz)
3428{
3429 int i;
3430 bool first = true;
3431
3432 buf[0] = '\0';
3433 for (i = 0; i < __PARSE_EVENTS__TERM_TYPE_NR; i++) {
3434 const char *name = config_term_names[i];
3435
3436 if (!config_term_avail(i, NULL))
3437 continue;
3438 if (!name)
3439 continue;
3440 if (name[0] == '<')
3441 continue;
3442
3443 if (strlen(buf) + strlen(name) + 2 >= buf_sz)
3444 return;
3445
3446 if (!first)
3447 strcat(buf, ",");
3448 else
3449 first = false;
3450 strcat(buf, name);
3451 }
3452}
3453
3454
3455
3456
3457
3458char *parse_events_formats_error_string(char *additional_terms)
3459{
3460 char *str;
3461
3462 char static_terms[__PARSE_EVENTS__TERM_TYPE_NR *
3463 (sizeof("no-overwrite") - 1)];
3464
3465 config_terms_list(static_terms, sizeof(static_terms));
3466
3467 if (additional_terms) {
3468 if (asprintf(&str, "valid terms: %s,%s",
3469 additional_terms, static_terms) < 0)
3470 goto fail;
3471 } else {
3472 if (asprintf(&str, "valid terms: %s", static_terms) < 0)
3473 goto fail;
3474 }
3475 return str;
3476
3477fail:
3478 return NULL;
3479}
3480
3481struct evsel *parse_events__add_event_hybrid(struct list_head *list, int *idx,
3482 struct perf_event_attr *attr,
3483 const char *name,
3484 const char *metric_id,
3485 struct perf_pmu *pmu,
3486 struct list_head *config_terms)
3487{
3488 return __add_event(list, idx, attr, true, name, metric_id,
3489 pmu, config_terms, false,
3490 NULL);
3491}
3492
